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 0x732355e2401432502827aecae2fe107c82e5ee73392bdae9a5a1c18273edbbc5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f9636fc-259b-4d7c-ae79-2f4e1f2b9f59.json and https://artists.proofprofile.net/proofs/artist/5f9636fc-259b-4d7c-ae79-2f4e1f2b9f59.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 0xa0e433614b4c4df717f7a00d9063f8e68609ac2e0f07ffa1d9be59e0d9947555. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABW1426158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd7337d90236691ed362128ddd531fa0b262ec0673161738adb55c6992bba62. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCABW1426163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18afff6f32e7d69614f88b899ce65e1cbc40941f3988b683d65cfa67c104f6c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:09:50Z), 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/TCABW1426165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce727f9f228c02cdf24eb002dd544c3774af5fb92bd9387b71f154541bfe4d08. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/TCABW1426168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f59326a5144b432dd36cee5332f957fa4b92edd404cea61285ad6f4ea5e0af. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/TCABW1434693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67da9fa59fcec5b3a10828a00aee907ce69ea466d6e2c13d1323cd05ef8cf879. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:24:17Z), 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/TCACC1446838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e517abdaf4ad5f103829498277b9f37f2c589733c2bb0d5b2ae7585534abbd. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCACC1446840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f3f6f0e31e750ba90cdafbe639dc1cbc3927c0aeb841f9da031494d4d03cba. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACC1446841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75889e68b9b7175cb36e1551b6fc4f2e9294efa2b867b3277abef9deaf0dfad2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACF1594067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef3734256badacf5b81ef1741b9958dd2485ec5956d3d285c3d06b14065679d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCADY1840088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fe3db09cdcacbb7847179a72027e4ab7f5582e107a971403848cc4a6a56458. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAEW2041818.
Espontaneo (Música Instrumental de Adoración)
Espontaneo (Musica Instrumental De Adoracion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f3f8a313c7a12a8c6d8ae3892b13e9d64186ac1079f95408f2c40b9902df23. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFC2058922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709dace82c314f12ef443fc467fb6205c672bcce8dd143530ff5be74f0c3e52f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCAFJ2115983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e7f2bf54d27a0206f842a2dfce51d810b3e842e23f4a3afce0e7a824065cb9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHZ62167933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e7f2bf54d27a0206f842a2dfce51d810b3e842e23f4a3afce0e7a824065cb9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHZ62167933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cdf3984e50ec56a1c60d05755d6ff5b98d4959052c8a7419a4544f66b841dd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZNJX2188267.
Ambientes de Paz, Vol. 2 (Versión Semana Santa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ca19e277c28adb7684b661cbbe9bf5b45c87bece91a010cde544df3fd52f90. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJX2458485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8768a89d601eeb8494cb78376579d4b4bd78e703f0e22610e981c2767abc5dc9. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZNJZ2565699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4403918b355289fc558efc309e7526a1c13881d22ab52b8a5e25e88b60a8cb03. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNJZ2565703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc180da5c87fdae36ae9cd82abd905efce82c70bbfee17df91e642a2e7cd0bc20. 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/USTC10770497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc409e569db72a86e50172952b1c50343ce88ea5c307685bec31e229aadbd6. 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/QZ2J21503798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc409e569db72a86e50172952b1c50343ce88ea5c307685bec31e229aadbd6. 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/QZ2J21503798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21bf55c81581bda9a83a2baca2d39d2f269f67817eedca5a55f9ed3341f8c84. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCACX1761623.
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