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 0x14e77d2deea430bc61ca14ec966c04a93bded8b7be1a471a8707b47ed2a4da39. 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/85ec5cec-484c-4963-b118-d8eea64bc87b.json and https://artists.proofprofile.net/proofs/artist/85ec5cec-484c-4963-b118-d8eea64bc87b.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 0xc98caf31d8423cbea3c317400b08c24ec9411b80cf0cc43834bb93c6a23ba6c0. 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/QM24S2005664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758c57f2f2d04540e54db9abcf81bf5ed85d35ad1fd3738ce2f927902a403c8f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM24S2005665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d2eb35de8dda188e99c7ee30774fe7557718b1fd51de5e1fc66f241221ab47. 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/QM24S2005667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c0ef240caacd67f549ebce6c77078cf699df63a6dc1c155851261637c2af16. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QM24S2105522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d2aeb0aae503095d64c95152b0f63bed415e328173ea9108eb98ced97eaf8a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QM24S2201648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4da311f5495fcc8c4177826373a4f6e72a0f6a6ea25814aea249ba32185fdb. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QM24S2201647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6253b724b43ef1d253a99083f74433b173090989a4d56e7e0ded69c238cc96. 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/QM24S2201644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18a469bce2d3c80dbe7b1552350ec091fa2f985b8c632846d2a645f5673f9bd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM24S2204678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd557c559079665b7acd8dedd6bb21f5f9ba9382406a8132a4615542738b523f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTAU2534126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908b2333a0fc51d756534ba1a7fd2e76e7f3e9234266120d12fda12a77791864. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:35:03Z), 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/QZTAU2534127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1831c9a9c0457c8d76b1537ccca847595667b1e832c7cb79446390ac9afc5c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTAU2534128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36472f07bc2d5661ca75850cacf7c36fc19ec2fe66c3800113c56a5ee87c3f17. 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/QM24S2203179.
ADDICTION (FEAT. Tre' Amani) (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f0aa83975596c698f82200f058c6e3c7d26639419f2d1cd50662ad74a2138c. 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/QM24S2302439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e6749ea6ce3e293c213782ff53574dc492251dacf8ef366303364b189f8756. 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/QZTAZ2350921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0177bc36cf99135f294ac77f7c05ff14bc6cadb7c64936f7a739f42b67994454. 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/QZTAZ2350922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff5d499b0e37e97ac5706f39e53f27786f442b14747e779818148a35607f23e. 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/QZTAZ2350923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0257a3119b914652a5a9c4dd4e667d42f678d17e66f08b68104addce1ed5f7d9. 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/QZTAZ2350924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a5cce37786c24c47b0a55f6c9859cc3f8044e3b08686959747f0cc2cb55947. 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/QZTAZ2350925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8ed653a756c9fb8473117f72584fa17fbe5aab4500275bfeee2aac7578ef3c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZTAZ2350926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e935374c1a55fd4edbb87b9d3daefea60dacb3185cd1410c414c5209e41b2c. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:10:28Z), 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/QZTAZ2350920.
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