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 0x0479ca601e7fbb7bf511fb1183d1bd047cea3bf1afbbaa3c4498233ac5c45e5a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9972b3c6-fc2e-4e25-9e47-cb1b1153415c.json and https://artists.proofprofile.net/proofs/artist/9972b3c6-fc2e-4e25-9e47-cb1b1153415c.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 0x4bc1365e697b3da1e770fbc3221eaadd9a7fccdadb37d0e31b6009ff6175242e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PEDJ10515104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57c45df1aa5e87346ab8fc661918a169240a766701faed1d463c78c814453b8. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:42:57Z), 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/PEDJ10515106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dc8c0493ab64f10df4287724e2d6dc9fb3455b4483ad32664c18fffdfb2c1a. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/PEDJ10515108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397716f5707758b012235d915d00163e79c1f3750f51cecf6c8f717e7f63458c. 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/PEDJ10515110.
En... Canto de Amistad (La Tierna Voz del Sentimiento)
Mis Ojos de Miel (Recorreciendo el Perú) [En Vivo]
Chincheros Tierra Primaveral, Hija del Sol (La Tierna Voz del Sentimiento)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0802ef8f0477a478b0a4399745febef6db1149d91f973bc00cba45527dd85ac4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:09:03Z), 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/SE6SA2301163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8e2278ec02e2fc12523d86149afc02259143fe8be27f5500de6aea2c719d0b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SE6SA2396532.
Carnavales Ayacuchanos - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d6870fcf513b36732b09376e8dd78f44460bdc5cb0852377e88473e398a36d. 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/SE6TI2372070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a83b745a5d74534a9ea9cbc7b2cb2e36dd00e3646ec8fc4b6a4726d545e1838. 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/SE6SA2352031.
Selección de Santiagos - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f0df6bb85eabe301b92bdf46ac30d1cec4855fca2e522c9031249cbe1bad91. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:32:21Z), 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/SE6XY2336140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47faf51be634e5e158c3362d5c27a2bb5672a047794ecd8cff9d911563c80991. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6XW2372315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6c9253a11f96cd5ffa15882f76c3fbc72e7f6776e086e01b452334bfa7911d. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/SE6QE2376508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3795feffbb8ceedc36722e91a71a1b070f392ebe0e10a465ae874f82d1c4dec7. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/SE6SA2382377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc7a39b56e772c04e79928b422122cc29fadb77e0125072cadd74a0bf6c4401. 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/SE6TI2354156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899866b3ef1e2b3130f03a88104e1fae35fa35d066241cf44d9a78b3642f9372. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:05:39Z), 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/SE6XW2342546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32679ae6e6fd134afff92020b8d39ef5743d0fb80cac50472fd75b34ac429a54. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE6TI2366891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b243706b68aafd4452a47ce8cc0d731ba64dbffcde02a288831f969dedafc53. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6TI2300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa760be954af49849feadea16ccbbb27e85be17632cc2c477670be8619570e08c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SE6TI2394470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622b31d53f240db80a7c3753a9e6785aa51a444c6c23bf2b6dc420bc5266b31d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:20:17Z), 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/SE6TI2309304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e168dc216c5aa921492b3f8663d9eecc3e11358b981568191487b2265b6f9a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:55:26Z), 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/SE66N2349342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed1d08fc765b4243661a371cfcb6be1c6872f173466f4112a3e2a5ce32a9086. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:09:17Z), 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/SE6XY2379328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b70c84392373d8565a1435385c5ce04d96e7622ff1b4a6c9084a82b7e83bde2. 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/SE6A92372623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fffb8981b3718c052b619ef24dcc9b9ee6703cd10abb4369811986a2ace637f. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/SE62M2332485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39af7f3fa2b9d8fed7e3b3411b3c1aecb408bcd5edf1b06759011282a38bbdee. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/SE66N2323739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b378185d97180c1a6089e5afe77935bb9e55eebb99d13cd18785d580d6e5d1. 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/SE6A92362287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0930849ca478ec9158f5e352814169e4dd16a4ebe5e81cb4c3f9c7658b13ee0e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SE66N2378355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41adfa2c6e56219a47df9e947255976c0e29542085d2e2d361007eaba85a0964. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE6XX2347384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b349e436086bcf984158641fffd3219dfc6b1e841d13d028c0aa5aa394baa4f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE6XX2362911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045043ff97d443f234b3f20f30c67b625cc6cb3b1f5a1020e22d13fd4c314c8b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SE66N2356029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60a313446734aa17e729909f21b1a2fbd854ec87217291e7bb9db80ca93f256. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:26:17Z), 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/SE6XX2345149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9028ad4efe403c0aba6cb8f2d0ba12597a0bed61e1b42ec20e107e86d54fb4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6A92319624.