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 0x01a11ec58ab2b9b2d7559ba44ed7a8556faf84e46b2ecc8263634153f859f103. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/487dbc6a-3d9b-46ac-9803-ed96d041db8e.json and https://artists.proofprofile.net/proofs/artist/487dbc6a-3d9b-46ac-9803-ed96d041db8e.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 0xc66369332cfa5ea9edf121fc426a1f1ba5169bd40af1c4ca5b3e0a8dec1e7c86. 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/TCACP1698030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6736890bd6b170456802dd12bc4710a28ed67db80f2ec3f141003576d331eada. 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/TCACP1698031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a8801f8e022cb33b96732e4d8c9ac62e0fdca74a9b5c17b6dacb3467266c80. 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/TCACP1698038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a27db092909ecaa7c766ca03d7319cebe78503fc49b96d7507c19b0fa84563. 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/TCACP1698040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942762be5a173935caa82c457f9b357c11376a50550b674926e8698a27d7aaa9. 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/TCACP1698041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0dd1350f5f6c156bac56809c174bbc49619ba2fe22b999956fc7f9395a1f99. 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/TCACP1698042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9efe096b639c9e7a5f7cda5540736c73f84dce6bcdbcfa872d90aa028287b6. 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/TCACP1698044.
Light Goes out (feat. Apalachee Don & T Spade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a1034e711c424385cd3ad1dba1bcbc0a982aecaaac18564944d53802d56caf. 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/TCACP1698049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca0daaf7c4154179635131139127c17ebaf9907fcbfab5a5df3d9a669e649e8. 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/TCACP1698050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d9faaaaf6cb948875fa779fed628ec13f03d440f12fc293d4304df84d88a8b. 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/TCACP1698053.
My My (Rebel Remix) [feat. Moonshine Bandits & Dez]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7cd41ba81bd1e3104dbb6ac3366403db213c004bb1bdee0cf63dba29b87671. 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/TCACP1698054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25206605062995c14ee19685710b49f100c346678e39f283f76aee8a49413082. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZEQU2268099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f5984e3e8d11fa950c8a74a9e4280a01c8fdb38fb1fb8959e5a3762d0c9dd0. 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/TCAGI2212093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe415568c678f3ef30b68681ba148e8ca6562c197bb1b2f3c36705bc728f830ef. 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/QZHZ62176409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aee059aba017c6ba9aab597479e27cf8085832989557eaeab0d7fcf47d896b0. 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/TCAGI2212137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985f55d63f74c1ec4a156c523a0b08e209e6e5d1af229a29a50bcc1604550e55. 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/TCAGI2212212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dee291632acd2e155ef6eada916232b1546e7b354d255e9ab8841d302cbdde. 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/TCAGI2212262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d6cccd272ed4911b2fdd1b7f0ff363eefdb654f5656db20279f1b38e061f69. 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/TCAGI2212269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488281da509f6a21657d5e3025830f33876e127f80e106f7007d3655beda6401. 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/TCAGI2212301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09340b47da493b6394e4936c253a192919c3337374c403f702f085bca1fbc0ab. 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/TCAGI2212335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0368128ec9c3d88b44adf00ebeaa81b8d5edb242db202a2e44f6a686040484. 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/TCAGI2212343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713869d7a95d48e8eb7af9c9a3b5433d4639f1843f309da2680c95922ea123c2. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/TCAGI2212223.
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 0x2c2a95a117a4b185bfe69c04a6a268d973dc27aa1fda540f22f3f018ecc24160. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TCAGI2212237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dcf77e226f8657232f83b64ccd0f42e800173528a5ed8cbd4e5827554dd4fc. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/TCAGI2212298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a793598ba362229c1823b71908bfc0b72fd4fbde257a4523502876d13511706. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCAGI2212312.