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 0x6a3bf481648b7d705d554724d46c94efc33062a2dc0c5a37a811c707f4032675. 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/d102558b-1e5a-472b-8900-94a93c5c2820.json and https://artists.proofprofile.net/proofs/artist/d102558b-1e5a-472b-8900-94a93c5c2820.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 0x0898b9b5c5dd93fe7f18c63066048dc9e05cdd2ba42afaa1cb5fa7e298ebefc5. 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/QZES92011343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5c3e20511a8bbdc3146bf1ee5476e83baa7bdc9289d44fa0bfdd08f268716d. 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/QZFZ22277324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5a6dbb83599f726260d80e5977d47a22242752a4dea4986b521c1300128599. 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/QZHNA2326543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b9cd0970f782aa26ad030e30da54e15a46ccd2296dd87ce568d12d75961c0e. 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/QZK6Q1957237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310ab5e2220c2d4464fce7acc1c999f626ca1c6ae86bd14bdd3d665e126a9416. 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/QZK6L2033423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba647fcbd0bf482d5ba367a18c85898b7ba643285f49ccb5ed661d93f3fd41c. 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/QZHNA2326545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc622ad6dadf79082fe1f42c19b272552a361bf26a4c50bc334301f46614de71. 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/QZHNA2326546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a6a971a030534da21308b54419b226b4ef96a84f13d52317182911d63bdb7a. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZHNA2326548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a4aeb1f21ca356ec5b5d03e934ebafa68d905e36105872af0e40ce89a548b2. 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/QZPLS2239570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fcf212a8af87a2d93e326d75cbf518b25aec1f992f26a338eebc1c115e0601. 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/USASN1900361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadc49c9df5b88ee202280cfac6e26b4de3008bfd864e6d4f3f4b5a4a8a9ff9b. 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/USASN1900362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e930e7793b208ca9e9196425d37359bcdd5e779481e526f9fc6def80e16b25b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USASN1900363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d6c5e9cc857bf014d724e8ba646ace0102a309a868490229e76b41ec3d63a7. 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/USASN1900366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764786a560613296a397fd223d41b529a6048cba820dc8f9e4a7e96d04b786e1. 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/USASN1900367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d6aef54737999c546a81e348a55a8efe42d6353168fd17d32395f9ec6cd58c. 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/USASN1900368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8b0643e38039f0c1e8e99584ba393b0a10bd097877c225163c638321250261. 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/USASN1701309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf41c2875ca2f5efd05d18474acbed06f734a93d769991a989e7af1a42dd4d9. 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/USASN1701310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee9b539bbd935ea00559d66ff63564748491728ae371c58e4ae3cd97fa13773. 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/USASN1701311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe437464e68a4bc5ef73281e5f9b7d43d075f69214595bb7f5c3da260b0dbf83c. 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/USASN1701312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b5301afd24c99c9abd559fd41075025c114000426da3dc2aa5b4449641bfef. 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/USASN1701314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da3b7781d1a3b180d50f81c5964f663f10c6734afd624b6761af6302f857dc7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USASN1701317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eab8daeee9ffa9a0b42bcac3eae3cd8ffae3a12df3acf7b11e2faab0e0676c. 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/USASN1701318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ce9c0d35680b1db08f947e211071819045f33cf4adcd7fced3b8e74cebae11. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USASN1601450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6592b2b00fc60fb934663569d89f7aa4bea73296299abdd719d147576e4b0ea8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USASN1601452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96042cedbbaf674de67b60929a39beb5860b63b667fbd962f6a01b1aaaed3924. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USASN1601454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9427834f120025708539273a156ae80d6ad2e80d2ebc10272510b8119e420d. 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/USASN1601457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39e927837897b059de24aced9a256b65d922bd7fd1dc61b98d0c082b7445821. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USASN1601460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe136eef91be0e4f19a80da1012cbd82c0461ba0edd4ea1adfc5d15b84b17c11e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USASN1601461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e2171262466340e92a42f8d3d6d6c924e211ea56a91490e3703c6f312f7b10. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USASN1601463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f01af1fa6cc04831b80346a8b1fd76b51f2535a17c065b35d65dafb587d6834. 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/QZK6H2375834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a4aeb1f21ca356ec5b5d03e934ebafa68d905e36105872af0e40ce89a548b2. 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/QZPLS2239570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310ab5e2220c2d4464fce7acc1c999f626ca1c6ae86bd14bdd3d665e126a9416. 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/QZK6L2033423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0898b9b5c5dd93fe7f18c63066048dc9e05cdd2ba42afaa1cb5fa7e298ebefc5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES92011343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec18038f081fd8f85a2916e3d8af7ce9ce873e863424d683e1fb1b14635d567. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ4JJ1939145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0c3ba4c023706948be8bb40b2f701d9928db83b878b86809fb8b0df68a2437. 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/UST8K1643037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0e46b693dac8e4ab57319e87728e49aac0410303af7a67bc4b585829174423. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMER2427864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e040a8e4e8d772a689bb11cdf5702fb3385f8334f0eaf34e80faa766a54a0a. 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/TCACL1641427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18141825051c9d984a6df0335059436ce546fa852e1690c4e6e9045f0fe3de19. 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/TCACL1641434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6085aceaa012bfe0a3a7bfcf5dff83a33a1601340b5d4a6da62b1c749c82edf. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCACL1641439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7167c27425ad382c05daaca2e81f7e4a3157a19d00914a95c6c53387e332c136. 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/TCACL1641440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d65ab9593192976c2183a4799ff9d58a09f6c3195296ed67e30d82d8f17cac1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCACL1641444.
El Agua Limpia Todo (feat. Charlie Sierra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ad79b09bba5b3054650ad43b54d5aae4d72124180cfca603f2b2e99b8ad52f. 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/TCACL1641487.