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 0xfc2d3cc8a9b146ab44befea8d9ee704a0b5d380eaaceedcaf8926d5fb01dbe5c. 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/8de550f2-3cbc-489a-a13b-1a835eea3e62.json and https://artists.proofprofile.net/proofs/artist/8de550f2-3cbc-489a-a13b-1a835eea3e62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Westcol (feat. Clandes & FineSound Music)
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 0xf4ec4f47108d4bf7198a24132fd5fde0e7dfee15356e387ecbc109d325f28c24. 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/BK4DA2320693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792e9a747543aa03839bfec50d67fbb66bff07d56645b8936b0b6bdb9dd3fdfa. 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/GBLFP2340222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01492dff6f8350601027884716ee6a8abd750d83209792f9c1759465897e1389. 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/BK4DA2318648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88a39d4206d0a1ffd0a68741d643a5c9cc2e7ab8e7c8c3c560b35b25b16ec96. 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/SE6XY2168739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f9802cdf825b6d854c215b00bc1839b31842e3e2b7e298538a55b1a3710c89. 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/SE6XY2168740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06edfee4661fb11512d4b50ab0408abff836a5b90a1fd56b20834e64356c2e77. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/SE6XY2168741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a06148952b62e8d2126b24c2904df24bded8f65b5f37b000553e95658ce3921. 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/SE6XY2168742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92aa7ae012087fbfb9a53a26ee0f6e918d27afc6add2fd620c6f89d992cb52d. 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/SE6XY2168743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d965f3f6a2b0a805ccb4d39a40d9f08be54591a6c35c994c0eeca84287b0d42. 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/SE6XY2168744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e2805a91754b04277565d70fcb2084f8f0625e600f899915f9d02977f1e624. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/SE6XY2168745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28351abae64299b7e237a9e91552844bef8b1660b42bbf3d40c82f77ce302c6d. 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/SE6XY2168746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328f011a953cdd9cc026c22b3f618afeaaedb1ab27e46f9be4b60528d263efea. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/SE6XY2168747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf025e3d8bdd1281dbf03e80b90a1ee866013f29760be6f7fd10e0eecd8113c47. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/SE6XY2168748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55681e2c331321df5f0fba1cbb520398eeb6bd977db49af55ddb7b6046dc5a54. 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/SE6XY2168749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc84f6ed474ecc1cb4d3e53efe117f875cf9ab9eb20b9ae99ef730a2167e9e2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE6XY2168750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d3b90135eb506605acd244d53c2944a5043e3c902bff18b7a2ad78a197d4a6. 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/SE6A92193217.
Donatella (feat. FineSound Music, Los Money Makers & OG FLAMEZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297f9e8581e1fe646873af12e17851d470a660955553291ef4c36f7480953e92. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BK4DA2324177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa884047dc8e64b527021d76d567099ebc5df088b57c053b15929005ee1d096. 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/QMFMG2334167.
Buenos Aires (Obvio) [La Ruta Del Perreo]
Buenos Aires (Obvio) - La Ruta Del Perreo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beb6c9f28ce07fa8607c34d0bb3d3fe239d55a6e6da742a5f710f57d4405305. 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/QZZ662359950.
Los Chacales (feat. Soley, DFZM, Los Rogelios, Robin Rouse, Maicol La M, FineSound Music & Mauro Dembow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5f00475265acc611e0c95a578e07579de0212dc2fc1e0b4dd9c52e1f17063b. 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/BK4DA2326156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27909dc3b206c01f54951a368cea38ff53628417e64ca3df70b2f5aed358a897. 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/COAF42393214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5e6cf587bdc4b9e867b02e3064b4496c3c00f606e5abc2b9bd9b1c531b83b0. 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/QZZ662320140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db882bf2a9c48c4135343fee3bed6019fbde66592060eae18d2a81d9319a82a. 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/BK4DA2315885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76f2f4288b932827caaf44e3d427d188180462d73a63ef8eae856f2707c3d18. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBLFP2312645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2e4c1cee06a44c5e665523fb9e0ce5340c93c5d97aa4b55aababcdcce11aa7. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZN882377867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafd66ef385d58e16ba4e269b236b96455a097659d4d3d5c7e821dc04f8681ff. 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/QZGLM2301661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d1284bbcc38284378cdf72d684a98989eec547b03dc75cb5d4ea82d542880c. 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/US7VG2347223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b552300f7feaa60f6b76ef96813a0fbbba935a2f4a0fea00c7d2db4928748c. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/SE6SA2288009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15bec79c92221a3f87dab1b1922fd0d4486e29ac5e66fb7686f130d823f1777. 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/QZNJV2260795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19cbc1f38b727743e63096916369bfd53a93d2e95840df934f104153b35ab8f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/SE6QE2252703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a7e18ce11abef36b4ab05d01b1c40d1dc074e86e963cdfd881aeb4b62137ca. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/SE62M2167146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04428c02aa956fe19807b0905923d0e4baef0aab24e639e5bf9d1c6a61572698. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QMFMG2378097.
Mi Parche Remix (feat. Reboll333, Maicol La M, Robin Rouse, FineSound Music, High Galaxy Music & Producer2233)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28d3d3557033ae499e7cdd2cbf56edfb1b770ce3d8c3de8cea634044641d7ec. 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/BK4DA2407093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c736197b7653060695b643b4120fa05534dedeab9a41fd79474fa69edea9acb. 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/BK4DA2412953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beb6c9f28ce07fa8607c34d0bb3d3fe239d55a6e6da742a5f710f57d4405305. 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/QZZ662359950.
GTA Cali Cartel (feat. ElMalaFama, Maicol La M, Robin Rouse, Elniko Arias, FineSound Music & Mauro Dembow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a861307a868721e31d9a194a012ae5e78973bc63e7227c1a2ab0ec6bffdfc5d. 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/BK4DA2319103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644597ddef6930b5890c4a433e67d5f938d4a2292df160ce354593418840efbe. 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/QMFMF2394698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d6fa295c5bea08ad77cc6b8e59b70b74ff66b8b773129aaee7dd0cd98de5f2. 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/QZN882377989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b26882ecc62c6a1da287cfd07bd65dc8053698a5e64f680748d0de92d38db9b. 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/GBLFP2337310.