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 0x66b180d6497dd63b1a252fad0548b257d63fde41a11a8f906f4b26706d8c5418. 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/eabf1f3f-edfd-43a0-983a-d41a91f66004.json and https://artists.proofprofile.net/proofs/artist/eabf1f3f-edfd-43a0-983a-d41a91f66004.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 0x8eea5de56b9b76381997138e49a6f80b845abf347198f88d62353c533d348206. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USDS10812976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd54d9ed08015fc28e030ef03f284b9a222293ee07f77a642504796925f330e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USDS10812981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e35f2157424f07c2f0dc3e462d8b92de35e2c0aebc47dc29978ea7ff1773b19. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USDS10812999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d7080e528a3d318f1905178ce6785253d39516c9bffded968bdd5a75534d60. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USDS10813000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7cef46ec1dead840aff3e03545e7ceffe055385974cc66755c73574eb2bd3c. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/USDS10813001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cc9e66c8adc5f07c20579347d2d085d894a2069738cf60e609b08e9ae6a793. 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/USDS10813002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bd25d5e3677ad2edd19935d36f72da2e736d1c546746b8efaf417c0b05d25f. 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/USDS10813003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31446628af2c4cd9c6545a3532bf4768685961c9f3a0e7e13424592010ff91d3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USDS10813004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd54d9ed08015fc28e030ef03f284b9a222293ee07f77a642504796925f330e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USDS10812981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5947316ddef84c9c42e529fec3cb6b91ea35151e47ba1aee306dfe87ae6345a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZNJW2144444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3150e356fe2533864645df292b6b1ef2f0dfb33b1b9a50841757176141e702. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/MXD481812451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafe88c73f845597d28111678b0f4838ce895c56f448c4b0aca9b41c12c30860. 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/MXD481812457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109a0d5106e6caac61371f92ad8f33fab05d8e30f6491096bcf9ed8a3a3d4b50. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MXD481812475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94eab86e5e3469d9fac600ab1fe6b6ecd10ea826156866b2afd21870c9c17da0. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZNJY2198738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb9300d1483ea3bed45a7a1df18084cffb22536c86c07254239ce1c4f950579. 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/QM6DC1352842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0024ad695063aa7556854f274b4ddbb5a34a290d1e62ba5f9b5bb24dd8aaec69. 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/US3DF1101769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731d35b4e52a1091e5b069af4bc0f74e97c76f656234cd483568aaedbcade057. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/MXD481812471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b154a90cc02aa62910d31b060d1d242512201f4f9c5e5c494d11511adcc2b1. 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/MXD481812478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243d473b596bb38dfea888695c9aacc365c1a2c7462570ce3297872177c693c4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXD481807455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71a0306cb69025af489d466bd9d130904e09cb696065ba93a0b3e4ad1ef8c41. 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/MXD481809238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a7cb3c8465788d124f9b35a13208633191742025fb92c8b1fbf5a567b9542f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QM6DC1555050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b53bbde4a4d6beb564afe722c06fcab47d3970349f8406d768a1fdf15f0c6d2. 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/MXD481812427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35e0a4b4679455f9877828679e5b36ab1176eb322f5f3e8add4594cd3e8e367. 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/MXD481812429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac2ad7f82df81a07a3a5e074998854bfcccfc43a2e22476366e84c071b22d37. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/MXD481812436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695f9e0689c901d11947a07d98d5c91942e454d268367dc43d81e4c2e60aa5e9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/MXD481807434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f272b10d5be62ac7bd003e1163d644cab36a1cacfc1a9696da69e5f3196895e. 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/MXD481807436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17432233bfcf8ae36f35ba7d760bf4ee87d747ac655b2e7a743d4e5ea154d1c4. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/MXD481813507.
Lo Mejor de la Incontenible Banda Astilleros, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f68ca697162267257eead5e8632912aa0bade77447ee41c55d7bc92a44b7f4. 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/MXD481701666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5ee90f13f47331ff4b7888108e7569d08790a149df58a47b5e3d0b067fa86c. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/MXD481803409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7b5c52a1d2e53b12a2497bc0916c141663c61d7aec9bf277ff45c81723ca69. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/MXD484803410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20656a90cc1461acb1f55db4b3ecfc069495ee5a12b3e4bde3f5e3b6f58313b. 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/MXD484803412.
10 Kilómetros a Pie (Versión Incontenible)
10 Kilómetros a Pie - Versión Incontenible
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fad338d3c70a329d0237da347d2dd26e90e18c638ca33ec308f05d06f77cc76. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZNW72357023.
La Botella (Dos botellas de mezcal) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1fc7854d2f4dec50f40c17328ec37900023c4164eecf11134d0efc09bb7987. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZDQH2378774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e1d3ad4d2dd57075c78c4240ca56435ca466e7db7f937ac349b9982585d0d1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZDQH2382322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93480cc8f27204ec0ee206d5f9f424e8be17c4716c63ee5d243f90a37bf88676. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZDQH2416942.
La Botella (Dos Botellas De Mezcal En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a913fd74ad79ff1634969caf9f9d392d6bf69e941b30c80ba26e4a056cdd3b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZDQH2435030.
Que Suene La Banda, Bien Romántica Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedaa190ea0f29cfcd66188e49fc1d266c09e334ccbde8bfec1940e520361ff9. 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/MXD481810544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47130807411c9cfb51b00ced324844c88c9ca8224fd3d8ad85fe0338c57619fe. 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/MXD481807481.
Banda Rancho Viejo De Julio Aramburo La Bandononona
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c411a647b9f5b32bb6117fc36aee8faa780de22d6fe2d5469f24975c29b5034. 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/FR10S2575901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c411a647b9f5b32bb6117fc36aee8faa780de22d6fe2d5469f24975c29b5034. 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/FR10S2575901.