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 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 0xf89d26faa8c6cd683a0bd704b3911372f1a75012b189c837d5b2ede2b689a4be. 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/ec1ca5e2-5b3e-489f-83ae-4129ec868a88.json and https://artists.proofprofile.net/proofs/artist/ec1ca5e2-5b3e-489f-83ae-4129ec868a88.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 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 0x674f00c74ea0edc278f1087f4329921a0e9391aa150c2bb13fc7566c94ffdab3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ4JJ1671546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57752ebce845054d68eac65cb6c79434197b20dd8ab1425f65dd74cf18638465. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ4JJ1785385.
Waiting on Your Call (feat. Park Avenue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedac42bb81031e9b07065ea0ab29627f1d197813ccb0ab022d2e487300b47cf4. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USDM31792801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6afe0159db57814a380077181a30f01f13ca276d8515e9da817e54feef7054b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QM6P41755478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a5e80d1dfdede8e92582896ab5296382265d4597712f380152261a54468d10. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZCE61875107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98f9ed1249a534f75995dacc0fa9a8df64be76fb3bef621d84c8e670063be91. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZB4J1830817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595484fe5230cfba40a28a342b1192ee29deccfaec337b77a651cb9020aa0ce7. 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/CA6D21800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970c0bd788c98a2f9cf7fe8b72932e5e58c1aca83ace507c92a42d980f7310f0. 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/QM2PV1879220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91607f3f8ab80347d467e34e6d31a09922179791e8317c7f3ce4f7393321e72b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKPL1949021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672b6b6e9016b117c4704e9c02d248d3e57159906555a7d17f14971772147c54. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFZ41959494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb991ff467affb75c73087fddad4f1d3892ac32e64eb52dcf0c71e9a8b5c628eb. 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/QZHN91912659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c4ccd86b6226da1a958a6eee0c79a0f3fab41e3e51ccb5509a854a29227958. 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/CA5KR2323170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159352578df8df7c1d3de012b35bdd6a5c2271840842e15aee8bcbf4fc0c08e2. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZK6G2514327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595484fe5230cfba40a28a342b1192ee29deccfaec337b77a651cb9020aa0ce7. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/CA6D21800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8028ed1ac4198d6895c5cd7905938bb3ed5b114f9119cc0bd18eb575cfd697ca. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/CA6D21600363.
Fuck Apologies. (feat. Wiz Khalifa) - Anevo Remix
Fuck Apologies. (feat. Wiz Khalifa) [The Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb4ca65db1d1d0e252b1d91f57299368047266a93ffe159f4727bf4f59f3b70. 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/USAT21602460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b7357cb146daebada3de548a065b8347c6b971c80dbb79ac7bafda9353494e. 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/NLBW51500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fd66a9131644e8aa813fb339606ccb54fc06027d389a5b9dbda3fa5a323217. 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/NLBW51500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965ff4008c5fecf747341b20b956abb90dfce26e926397bb290dc4c8fb2ac9fb. 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/GB8MX2000521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb271784a1f3d82f67baaa1678df30848ec1b830aa054003eb0a41fb1813794e. 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/CA6D21700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c27a86c6719bdfb4eee5a8bde5abd7ee6560c305aa1c18a59571bc716486f33. 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/GBLV61633919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5295a7eec88f61cfb86397cd50d68588a146dfe53b8a3da8413ead29ea121bf4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CA6D21700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5295a7eec88f61cfb86397cd50d68588a146dfe53b8a3da8413ead29ea121bf4. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CA6D21700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb271784a1f3d82f67baaa1678df30848ec1b830aa054003eb0a41fb1813794e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CA6D21700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa501f5222dbce9b0c38e4e50f9dc8a62088a646a6c351da8ebb4e01cdc0fdf. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/CA6D21600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9366f15ebbe8ad7e859a8d1512cad2e1e5fa6b1ce7c34bd30f359630bc4918. 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/CA6D21600166.