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 0x7f1ad6881a5d43df8cccd7d49d298d1816af8d6386f60c4f6a5a3a58c1f153e7. 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/e805b116-616e-4af8-a087-408a454adffb.json and https://artists.proofprofile.net/proofs/artist/e805b116-616e-4af8-a087-408a454adffb.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 0xba4cfb13cbac39865fc4f60c0f353c1c3734ca76117e9503881aee59faa33333. 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/QZFYY2475772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd055d1959d5e02fd7a599998cb961f55b0cf6481dc01bdb5fd4326afccd4da77. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZFYY2474684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dbb041c0c3ce12f5165287a0e2c367b3cd1c2cb031cede67eae425f89ec37a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZFYY2474685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a84bc6d2d85e578b55c807debfd3de2d900bdce95a4cde05a02fb05967666a. 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/QZFYY2474687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfac1549e99aea94012c81b3b0002253c66ab6d99009585729a1e37cc54ff78. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZFYY2474688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04922db3dc84dcd5e3a4a8640c0cce11bbdc7648659440cafa200b4f0f01003. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/QZFYY2474690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25991a9177d2b4b33bc8bc6657ccf4d38e7372ec76e1c56a4f6c213de69c5aea. 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/QZFYY2474691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870c805558f4a3658511f57b08aa475fff32344818467f87d3202b06e5e28e8f. 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/QZFYY2474692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe59ad7d46276bc9d12ca15916adb0a0574c09282a2e0ff488e24ae7f2d46f50. 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/QZFYY2474693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a2f97e7bb6b26c6eefd2f5664e30e0685394beea3731f94d5248b6c40a9145. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZFYY2471846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53525e0edf0eff6befc8fc78924951ce5604fc9635d47e450153794d9da66197. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZFYY2471847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47840a1783d9ee5bdcf93d609d5eba248f913b6b83076ed66ef5f1611f0374d0. 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/QZFYY2471848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307b5322f76441f66e5bfd24ddc6d0e445f9d4d00e8eec8c3d973bfcf2bf9114. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZFYY2471850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cf3edd37a23209c830fcc9ebf05bc0d3876e3f1f557f5cca510fb359bbbf51. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFYY2471852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab6d0e9a1055dc48acc728831ce54c2e3dc817b42b14b88c6adf644485d3108. 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/QZFYX2464956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2be54d54e6bcb041c481bb781ff7eb657046558b63069fd813e23b344cdc71e. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZFYX2464958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841f0242293c4b1c42def7657f4811e9051fade6aafa03e105cfaf4fbdc9f860. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFYX2464959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96ea158b4c00dfaebf97a741d0482e13f8642de7ada1481725d780100008639. 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/QZFYX2464960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5019305e3cdae05d75f631bc2de4c0a5a62642fa0769e992c48831b0daf4aeb9. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZFYX2464965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07c052cf981a72a2b2748c59912857bc81b9430e4309c9db0b6e83409578fe9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZK6J2445484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21a4d00d6460a4d779f68ef3d4a5d7854868d6b3fb0a00c4c493b3374d6e2d5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAU2455760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dacbae7a23b2d24793834a8eb511fc69d8b92642a7e8d04b157e4dbf3074b9. 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/QZTB22454529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2acfc4da8e652c5fea68d236d9f470c03225f58438157d7a901b1e70895acc2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTB22454530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f37e7429586f06dc9a918dde17865ce24c13ed907f17982f8f16f04dcf0bfef. 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/QZTB22454531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd989752bc66ec87d02eb0d8eceb13aec3c0e367c06615cbb31f1d38817a2d546. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZTB22454532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e277324d59da4f003128468a26c5db426a2aa03cea01623ee844d4779a7fcf7. 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/QZTB22454536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824ff219ee6ccb50502380994f132ab0ffc9876641063ccc6e9c58ea2e7dd181. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZTB22454537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79b4837244ac41c63fb3f6ef4b397de70db722f2b5271b77873635d491ea1c7. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZTB22454538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d24291ba296ef9ff1d44189d8b26c9223bb9c0a57d2b3933ee012d46aeca0b. 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/QZHN32590196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6902254f5472482d928628171bb4ba8c244e78cd8710cc8db2f24b675fe9fa. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZHN32590197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c5abf55cfc8d2b80d0799298094ed53565fe1c3315e71d3a1bc936153a0b6c. 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/QZHN32590199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd328e61a381cb40c94bb31c0636ba14f954268a2b99a34af28936928667e80. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZHN32590200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad0a1d1f387bf9836e319e3f8b1b0598d2ef836083e25452bf65981481075d6. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZHN32590201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5670f6a9489187632ee0b456a6e8e0e63ee56f7d7d2dcfd9608258354f41bf78. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZHN32590202.
El Indio Nacio La Cumbia (Live S. Famoso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5480888f9b00a0a6f86357364c6c1f3d2bd8fe8516cee830898374a865af190e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAJX2531177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae5f969ed29bc0c6210ff4eb8992a8ec82c7299886aa0bf10c3713ca4f30275. 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/QT65W2576183.