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 0xf4b9711aae47ba5d19ec7a1fc2a0e3c72afe6004dda1aca9b4161dcf7d24385d. 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/faaa72f9-e708-4798-b043-9f460c8b3a65.json and https://artists.proofprofile.net/proofs/artist/faaa72f9-e708-4798-b043-9f460c8b3a65.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 0x0efaaa93c32976b9f3d8bc2a5a5f531698f3807ad2f8aa408467b7fff450c590. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/FR6V80041702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3de619081d82fd43ed4a5c57b266a1f5c58a5371210cbb3e48e3b3f193a59a. 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/CH6541735531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb110ac0919d960779134a059fe01265fc98357f76ae32483ea1e1ff6db9929e0. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/CH6541989848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b65ada65cf26b2f7d2e5f5aa0bd9f364bf86fb1fa2c19b1e290e24f6cf5498. 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/CH6542036873.
Some Happy Moments (Stabbing Westward Remix)
Some Happy Moments - Stabbing Westward Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3be6f5706d1bb50c3d89cf168a28a8996a388ae1333d32c1c8af782a5390a47. 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/CH6542047637.
High Summer Sun (Jay Gordon of Orgy Remix)
High Summer Sun - Jay Gordon of Orgy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa53c409e725afc47432a2f32bbcb9e02b7c5b9f0144d4d1a1c524866180cf5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6542057201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a6d93861d6feeecc3c45d5dc7ca9493f20e697df5f1b98ece8f60da798e846. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CH6542068020.
In an Endless Dream (Chris Vrenna Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bffabf18866901b6cfb760355ca5cfddb79eca3b67d3449a8b796c681a3adf. 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/CH6542077512.
I Have Lived (Sidewalks and Skeletons Remix)
I Have Lived - Sidewalks and Skeletons Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864518a2d080eed218419a17ea6383d4db9cdf3b04fdeab57629fbb6e85b2bf7. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/CH6542127588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d5cd3458214ead374667b1769a0626e0cc8d73078ba64d39f15c860b6da3e5. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/CH6542144072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb487488e18b67318547a7781b9e4fad93db3e06b39ccdd2b6ca9cf3ddca26a7a. 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/CH6542160095.
Burned but Not Consumed (Aura Shred Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded0f583ae9e08c812776178b27875d29abea16bc2eabacfe876715e6e912162. 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/CH6541685081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf31568f1f6e29e9c697f2d496ea0e727f1a7cbeafee3e2b7d1e78bec8188233. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/CH6542193289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6925e3c27105fc81af96a94e0635bd9f693fc1df43eaed066b03e71a52965d. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/CH6542204986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb8a3fdb7a09a04c89064da3ffd2fda8b8b644ae49c274cdb291a30c37d4440. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/CH6542245678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6d162f692aff1cb25357a525724952fbb614bb040d5824a4640f4a6a4b901f. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/CH6542268321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c03b34b0cada8209e46e934cd4d704df348c2141f24f62052d1aefccd298b4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH6542319825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23defa9e99a07d09dcbf0bde0303037fcc85f93ede2900ec8d83723e1f994b0. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/CH6542411054.
Fly Above the City Lights (Second Night)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc544025df12e57a65b3809ad91751b4f463b12d3bb3d11e85220a1e6784dc421. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/CH6542442707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e79998dc9054414df6a5a5749f212dc2cd235bbefe8cfa98ec39ffcf49e68e. 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/CH6542460566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35d304dba641f2b58a418f655838e254b10e0ee722af0acf679506a697e0957. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/CH6542474272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157ad00be58cb116b29cbbcfd9b51bcf67843b115521fa99eeec56da3e347ada. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/CH6542384957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23defa9e99a07d09dcbf0bde0303037fcc85f93ede2900ec8d83723e1f994b0. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CH6542411054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35d304dba641f2b58a418f655838e254b10e0ee722af0acf679506a697e0957. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CH6542474272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021db7cf8cd8808ff11644818298df341956097f6c4f2bd57c1476638551317c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/CH6542440854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e79998dc9054414df6a5a5749f212dc2cd235bbefe8cfa98ec39ffcf49e68e. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/CH6542460566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907461138b535cd0013d290e998d9d90fd89cf0009dc56f062b72ee14b775a1e. 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/CH6542466800.
Dive Deep into the Night (Buzz Kull Remix)