1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38d55f5489909093c1d664b8f9ef2761bcefadf9d56218d58fc77eae010d025. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17baf4c3-6a05-4d55-8d9a-e84e32455d2b.json and https://artists.proofprofile.net/proofs/artist/17baf4c3-6a05-4d55-8d9a-e84e32455d2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd3a1790a1727e51978cc131a5fa00dc9eb2766ce8f637aa460f39e13d690f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1301354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea30c542fbefd889e51e2f01ca61b8b6150101c0ac8c6308f68a9b1e627de41a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fded171eb2f27a1b987e982496d40b81572c5bee27b91b6df2c875c3b5f37c5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581ff3a4e3b1136005c8759b2cb88fda6c2cb5d90cc7d8cf7479fe525c6c6332. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2a2e90251271a8928fe2dfdb214ede38a09a47d9c9d0bbee4daa0e9286fc8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52866873ba8d18535f66783efab784f0d5b40f92a519aa31326b69306107633. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426a01c977b0a50425e48f937e328dd063072d0beb03588d9ad0f39dde3e8da6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103d9b932208b4dad4f4d3ad75a543be13855efc00720af01befb7476129a9cc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57e71497901c60326296b7b5a8889bb9d9ad609b2bae973bd884acc5d805d17. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f56d40be4c26289af0e11896aac274762304c7a39e8ede520ef81266b6a3bd6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1207f3773a04c72fcc834fe17e7440fe05bcde595a80831c7c15512ce46acb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ccc83e1681508594b4d05d65413cf555c4c525254e9d0c85d9590f42d73b0d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897592514e2ce8e2aa254722180e10654b28e246726cbb4cfc33a12453d442ac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222fa3e377b03b1510efd94c09999cf6001a3bc4b9a91cc4c3aa372b655042b3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ec691997aaa5825ee4714600a03ca2d5d275082cddac6ce46cd4fcc6adc550. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07038c240f7e72bc12399b64e4c66e868e05f33e9c2605d266a23d60fea25371. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ba6153db61541f57296022ce22a5dc91dc49f42b37506d37cc1739e329565f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57f994bec41d3aef25916e3445e8fffd457cc55c94cad2931c17799625caa16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf77c7bed8a4a823d3fb7e1686143fb2a2cd60a93746d574bdae3f9d784fa9d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7614b4778c1ed5bb878809d3ca07f040659767f27124029a32d630fbab39ae14. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0986d905ad6791db3018cc94e0e3c02944b3e7c70c282d976aaac2a955d447aa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626fc096d88adda8e198077a924a26a2a8c24d0d46b27eed3f5d47499831e743. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1602389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0f884a3ebae00e1bb79d4c3c5388a595257a2f0bdaa1e3f1780c706ad18f0e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1602391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6a66ca7f94f462a87fa6e5601637179a4b9d82083e7e5e321288d7d4876fb9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1602397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9fca517f542cc118736e59db06d173c6ed0585529f27c63ba7d9959ba3cd56. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1502049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e99195d799b873437efa1a20aefaf4e20c90909deb0cd107105caa203085767. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa2e844bb0b1526c5044f71d47111db4166ae3864de224c5e041424b299b943. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2890c09a87f694dd693c50e98256776d919140e100c9d8af12ef9e2880e9453. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2757ec531597bd13fbf176acdf7aeb28ec38022c9c0faa1638426310fc1cace. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c30bea06f218d470459d03d8498bb4e1bb65ec7089f0ad5f73bcc0ad42d5977. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb80389bcfd675bcc75a94d4d23435f33e49e7d5a25072dcafbf16ef68e4156. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df1ccd661c9283301574f9b25f8c11cee3d06c10e19dfa1a4f2477243d2895a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1401852.
Progressive & Psy Trance Pieces, Vol. 21
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfd05e6de0d3db687383058ebabd75a52bc16b95c2258d1b09105c0d807a4e0. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGA21902812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5438fb2284c581a974e986fea8ec8dd90e393182516e665a53b5445f0fed68. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGA21902817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e101abbddbd26c83de0418e7b547a4ec484e0a7d8bddcc9bb79b775c8aaf34. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGA21802743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3ab94883485d0c973305971e42b4215d83e330cdfba183f3f3015c9629d305. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGA21802758.
Selection 2016 (Compiled by Cubixx & Jensson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eb110aad284532319ac4155af4fd562d1f1c2d02b120899800427e70d7e7a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd9df3b668757b05d6f876d7330e7dff22e445ae59490d0ae0b5c7d9bbd15ad. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc41d2ab01edb4b7298b0d8f32a0510485e28050d97f1efbc6877865e0b9b102. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBYB1301236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6512dd269cb625fd1a142722d818c6f1b445df8f7d3879bb4e8c746cf64f9e40. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK12200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019d23d1f09af1e1c7ea50c0fba95491ee893469d74348f257b07176c7a2e322. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11800245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdb0dd70e34fb2c83215b539335af2cbbc442eda2a13518d1f852abcc3e6def. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11800246.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab35e2f5cfc60d3caf35042e2b2bd4275c63a7317ca3f84550ed8db00d7cbedf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGA21802560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972e21627793ed90a1a8f75aebcd82a0fc34ffe44ad8a5f498fa8e53538b9402. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGA21802559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3f42ea68341ca8e5890e2c34a464844e721eb09d0c9e56eac04e951790999f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfe4639986948ecc17df97d03e6cf328b8dca8b16b28ff864ae9b0ecd32dfb9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d83052ab249b105356e873284326d3fc15695acada167ead63bff6a1f5a8f7. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff57a4cec8dbce45bbd6fdaaf92757b1860bf5452b843598329423767ccbae4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aaf331444959c3a1f9898b5c7dcffa89038604ad2c9b2934f2d3767c4258b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f8b2983e745e62703c786915652657cc8f899272057f0785c9bf853b606b91. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24093193319183c227e3abbedbe58f84260eb3128314bf5f12abb8c626c3f209. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3de00a6f4460a6a14a3a8cd99574db0bf8af386a20f6dc0f8f37bdd8b16499c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab2fe031a9f28156a4d7d0fa171b212703dc7defde93f6e4f37905871106966. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dd9e089321c5abbda900c9640bcc5ee5d64da9e620e822ccb672a121c9a547. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1542b3cd6ea40b9984f9eb595025f02caf05ac7a7d0bfba4acb9b87c009a3b3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462ea8e93e20bf6e72dbb0ee05f7f17be3f0c41126c94e79991849ef176cd581. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c71dc76d31638e6bd86e0f93a4c41c408beccf72a352204f7fd86638b7984c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb864e2b7d3a28ad7dbde3f4e7664efa7daa092c4c07729c3ce2ef67a3315ede. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5234a1ccfc537bb021d7a0aeb15ab7da861799ae5358173b6d43cb57edd4ccc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de85ea6667e927db5821a1bd37b0977cc565fd501e3d80cd05087edcd780507. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85abb92bbd2f52a756a94ef9a5a9b67dc5911e7412973e0839e293fcdad8b772. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9632b6df7fe913f3365defecbf300587b9871ad34389e10cf59cbc8e00074555. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC41600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711acdbc027dcbe4e0bcba5ca4c7fece291384f5ccc3b616609253ddff03bd36. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC41600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95513a4993b330ba4e4c0d41397becf4cad65947b5654a220b9457951784650. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKZVA2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148fd95d9d6babf8b0ebe9991f8e266e22e978554b3c5ede105c2d67e8adb614. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKZVA2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38685623fa22bfcc0ff4365a24fa4a2b2805c7f988e885f785573d4e88e9687f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR6V2382263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b521cc2e64bb204e42dcda44ad1e1c98274844ceb6701038c9c22fd93fd8eb0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKZVA2300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eaf0fd36ca871e7d0e7daf2888429b9f20d141feb076fd24155a55abef4633. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC42300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda94c21ff2054b554fdd96b93eade06ccd3a87594a0d071e12e5085542bcc1d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC41600093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e03872c34c1a701fecf3e49dcf584e73d8dcc16488e79760a3b473ac5e67117. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC41600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cba36b068dac9112ff0c0542c4deaa0be55f18c038fa740ed114b2e3e2aff95. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC41600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a6840bb67f9594cf2b252793ab7cee8192f5c3a04cc62d6a59f223687e714b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKC42300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c50b6f97b0a17dd9028394256c50b763a442f142d33c3bc08415a8dec93348. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR41521029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cb7b27c12d20905f434352933dcf5f6680679a019a6b3eeffb116707a16634. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELK11800150.
Playa D'en Bossa Ibiza Trance Beats, Vol. 1