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 0xd126435bbcb7a17f5b85f10ba9c6d7c9b231d8d3b2b897379c7ea9d5dfcf94ba. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24a4bdd6-607a-4316-8d1d-82d16dec392e.json and https://artists.proofprofile.net/proofs/artist/24a4bdd6-607a-4316-8d1d-82d16dec392e.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 0x2f0c24a071dd6063bd6c98a181299b1ff8a21b18416813632c986eb658c6b126. 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/USGDD2289003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9185f16e4e5f20b1701d88f2accb3fffe18d17277894d65301c7c27f8f77f1d. 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/USGDD2289004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215b199ae4108d6e4847e8afbcf4a83d6c31a2a9143f46f30ee7b47bc04577a4. 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/USGDD2289006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0bd6491881704a218e01d53e045597d96067a8970e68c7f64386d857c30c49. 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/USGDD1386601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd970f81f77f25433b0ea298a4b5fb32825c158bf4344a38ab7690ad957bc51c. 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/USGDD1386603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb1d4502368c35dab2504d01e08e3d3685ae50c5c1f129aa3cc26cd1f3c6b57. 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/USGDD1386605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe16960b7e7cb46b72ab17b651fd79b05506ffe038bc66959f893c9d62cc88ee. 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/USGDD1386606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb52a05ba58fb1c832c23c5352f3d94e23dfe187bf41d6d6a6e017c3d0946341. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USGDD1386602.
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 0xc7a2f7844b931901b8c82f55a7bea89a21c7dc0c122094a7b767555306e945a3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USGDD1386615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ac2acb936c0214e2f361735f76db9872192a7c89b39dac91bb027dd2d1302a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USGDD1085403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc9a899a3b708665e3cfec9c69304ff5fdea41016fdf34c5adffdf44beb4ac9. 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/USGDD1085406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16162f20e1a7b6756bc7968fff9a0edf03f45a04c6cba48ef5d8830b2fdce0e7. 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/USGDD1085408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf170b7f5c62a8a817094f90f4a27a64da5005597958262dd466430ac657babea. 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/USGDD1085410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4790095453a759c230636934ef07c1a8d2e8b1cd864bbb7f84018b10692a0. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USGDD1085401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff89d1a0b923d25dfd7c6fe1760498014fac844a56553a4e4fde2ba5052a004. 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/USGDD1085402.
The Operation Worked But the Patient Died
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3f992b19a3a317dc543f8e21f765c1550c8cd31ad1fcec7c3daabf2b066075. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USGDD1085404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72702731e3d75313d2b87db7be0f72c4031313039d0c04c92bcc6616519179f. 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/USGDD1085405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f0516fc4dd9c6384f865f37bb00538e45bad159c60f27580d6813f201b9ed0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USGDD1085407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03289237d8d098b588c61b83554117cb34ba537e7253c230dc99ed1db8a1105e. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USGDD1085409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a94c233c1f8c8449e6339f52fd76c4fd577eb806286ef615059410064a406b1. 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/USGDD0807002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f81cd5514ea5528e3faaf395d69579ffa62e2b9d46e80947403e706d7021e1. 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/USGDD0807003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8fd14614bc66588f94d1fd05c6ff85d050e7d95c2108edcc68e1bb1adb5c03. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USGDD0807001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef972b3c8ae3f827a117cd3f76485084bd1591ed707b695bac2d59c2746a6834. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USGDD0807004.