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 0x0713d8bcac16df68e0f32391b8513b2f29552c413b4d67e342dd1ad1c1594ba0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62c17abd-a9e2-4d0c-88b0-e214ddb3c8ab.json and https://artists.proofprofile.net/proofs/artist/62c17abd-a9e2-4d0c-88b0-e214ddb3c8ab.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 0x303737fa4587ea468cd1d2670bea6d0deb6a690f33855e6a1e4ceebe54e99d34. 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/NZRI11602089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd007b52de171755b716d9aafd3ae755ce29f429f9fd9b1e559b261cbf9fdcd8. 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/NZBF11800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde1b07979c943d0da2086549b10ee31b30fb38f450b8ba4d64fc945997edd46. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NZBF11800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e88d24374bccaa639353a2f19da53ec0393efba9246e6e5393ba0b7ea7c65c7. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/NZBF11800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e53bd31ea26b716594fc57358792f51fa3d153639c97c868a4436bd3402c54. 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/NZBF11800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e86e0fe031c5c648cfb703a1e64ba1046a9278d694803f071d462ed5e9d67a0. 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/NZBF11800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f0003f1f0342a55dc47a263300cb669cd1daf62352151447528e7138190b58. 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/NZBF11800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2800e502a9b0c69dba08a257731fc9202d067fc63d67cfe7c254178034b71c4d. 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/NZBF11800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08426784574eac6d85582e71988a0fa544df968421a51212fe2828e4e8b1c7e7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NZBF11800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ada40a516c3590961f9370c25725893ef892cecd6a95198b6ddf036e6c5e42. 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/NZBF11800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97984ff7d2381c8f92adbaaa6de8b882f17139458dde7eadc247488bb80d472. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NZAM01700514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fdbadffadb1c0dbc538be9be8d9230756601e775e3d27a5a90c4d97e036ee3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NZAM01600292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9426afe77ee028b2d8fd188d05554f6392f85498ca239b2d96690be9bee009. 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/NZBF11700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47afa5573e384ebb071b1b90c4a4e9ce1cb256a5ac4698cf56e76a741100d37e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NZBF11700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566c2d5585ce8ea1e9dd92b0d0d6c01d40946c263b46b15e3018b880bf025020. 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/NZBF11700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf846551d7ba6bedc04704996158fa0ee4b901568247d30134011944408d06fbe. 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/NZBF11700013.
Pao Pao Pao (feat. Makaira Berry, Mareikura Nathan, Pere Wihongi & Awatea Wihongi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a31fd9761f8479cfedfb297979e29f47ee065e247a52ac0e972184695fcd42a. 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/NZBF11700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2200f7efdf2f83c37ecbbbf48eb5e06c27362e0c909f867332d6984cbe96fce8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NZAM01701300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6eeaf5c653f2631341b61e3431ad2ab48abf4c4d27ed8f084dcd546f6ddbc2b. 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/NZAM01902858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae51fb2cb9d0b2811c11b5f0ccb4c5d7352bf41f2df764b1364752b5840d166f. 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/NZAM01902860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecd5424c0332e5de16c6ea6f56768bbedba116b512deff190472bf029831be9. 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/NZAM01902861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7abad3be39345c1d31bebeac8b39261c29ea3e9f0b1ba0a26e0f0259771e8d4. 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/NZAM01902862.