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 0x04d95c7ad6ccb0d6b45c425244d6252eb811b977438bff08e981c1be989e0724. 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/efc226cc-be0d-4a23-9419-2ef79f161b91.json and https://artists.proofprofile.net/proofs/artist/efc226cc-be0d-4a23-9419-2ef79f161b91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Expediciones: Matanza & Oceanvs Orientalis
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 0xc062da9d7786bd32064334e6034832be37b8da8aa86d0542cf2421c3b2e7e9d3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:16Z), 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/QMBZ91758376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2673551a12e2f404392819c6a5c2e9433ffe4c6213d2ef2964fa0d78bed591. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMBZ91758378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1507b3dbdcdb1eb3c5beade42cf885ee7eaf6dc7dc9f98f80e157b6ae957dd4b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM6P41805346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bc139e81e7ec5e385d6bd41ebeb1d9175c425f196f27f0654c825b4262ef0d. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QM6P41805350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e54360d342c49a33576770e3371ccb2545b3004f9ce6c10738db4bbba62566. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:02:21Z), 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/QM6P41805351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8206378bee36f8e2af01136096d9361a2c059998ec40658d8773a89f7a323898. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QM4TW1749247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a8794550ce8907a253ddc16838a9b57b402b35d76e7bfc40a30d497bfecf2d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM4TW1749248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46602515316eb631dee5ba698456f775121a5ac7e98fce4dd7eeff717f4e6422. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QM4TW1749254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d13853efe6ac4e7c171558ff5b4315dc4ab6d8ac83721a9f862570bbe8fe20. 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/QM4TW1749255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72509d7fed0135707c397f8fd4cf942df514d5db1efe780ed9bab6e1d9e66f54. 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/QM6P41802976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0862fbbacebc74bfb7224e876e46ae3c74cbfb991f8191775be85cd3fdc36a00. 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/QM6P41802977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03363106a0d816d22e19cf446287668214bcbcc4529ce83a5f118c4e2d231ac0. 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/QM6P41802978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf40a867f6f50478936f16296bc42dd167271c629644aa83aa42c6e0add3ac3. 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/QM6P41802979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0331923ae33f6965b997a08ff9a76d68efe6e514853b3d966e30bf26bdc36ea1. 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/QM6P41802980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1533ac82cb77bc6dd8c8761239f3382e59a9f32a04327a4cabfcf593360834. 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/QM6P41802981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933f6f18cecd166f8d10cdd0a56b60bd65d43e6283bf89c414edff67120a9c41. 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/QM6P41802982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e25cbf2f971d1facea5923ad4fa436d1e1b36ba62d679efbe037699be09b7b3. 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/QM6P41802983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336b1e4498656d1c251b55df611f2595fd6a42e6e17dff43a530f87ddb6ea56f. 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/QM6P41802984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6817c00078e8e4db6258b9a70f218f0f63fe6c84d2d8afa75a792efd6f7d8a8d. 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/QM6P41802985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5f31cd91d619e33fe1191389fa253b6c06cc7079c64534302488ed4aad84ec. 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/QM6P41802986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc1ecaa3eb52f888fdb5b2aa147c46798a613903ec0ceb5a74ee4709969510d. 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/QM6P41802987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992c1a9782c0825cf650845b9304f209e0648d0e63540e9ecb0741841cafca4c. 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/QM6P41802988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a2aabaf5220052517e7dcb9d4ecd6e512350532d73cdfe8b16a036b1a619ac. 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/QMFME2079222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d5c48c8f6fe2ad4a510c347d3ad28d0c557755b14c92b9553798375a3b1ca0. 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/ES71G2220814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caaae1bb34333d5d013c6cdee7e3258403964c0e04e85c258a371bf37346389. 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/ES71G2231415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047bb42012b10b3c8a991ac890d537dab8f94522e497fca0d8e2977c273662f8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES71G2236429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb9a32e594e5c24538294c584b832dd0eb23ee195ef2d3a4a5fff83945afbbc. 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/AR8TN1600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c6e759745a9b5fcb81ff995c8f6458cf870b6f2db05722f170075d257c5729. 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/DEM091700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec7c1a99744975a52639ffc3f3b4ef4aeb2c6fce7332e37d1af7df86caf154. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/CLKT22002420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec7c1a99744975a52639ffc3f3b4ef4aeb2c6fce7332e37d1af7df86caf154. 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/CLKT22002420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c3ea941f24172c73fdce3b9883d1d4b293c6bfb712162dd5767a045cf21578. 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/CLKT22304444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80cc1e30f835d503155012fdf4a3e5a203de19c630842f734efd5daeebbeffe. 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/CLKT22304435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80cc1e30f835d503155012fdf4a3e5a203de19c630842f734efd5daeebbeffe. 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/CLKT22304435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec7c1a99744975a52639ffc3f3b4ef4aeb2c6fce7332e37d1af7df86caf154. 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/CLKT22002420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f97c778c544ff0f3e73618e75fd8cf2f3f89c5c25aa818be68271eaafcd6a3. 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/USA2P1919796.