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 0x41382fbcaddcda03676cf72db9ba69e3b9017f8d580eb498f4987e9e172f44df. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd14e6d7-1ea6-42ee-9610-4094421dded4.json and https://artists.proofprofile.net/proofs/artist/bd14e6d7-1ea6-42ee-9610-4094421dded4.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 0x732af6a6b2735985ec7f5e2d4624dacd4a7087e70b045eabca7cab2c90c62398. 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/USDBB0601499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722b6fbb06663f4092360c44ff622eb21a73cebf332fb32b0afb47d75478e279. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USDBB0608936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdb01d17e23afeac3b43b3c3cfd0e0b578b1858c55de0c3519c3bd7aa9b9a7a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:26:50Z), 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/USDBB0608372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec328b51ed9618657d41c687adfc8b113f82dec0a1ec738d6ef4bf13c8994024. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:16:45Z), 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/USDBB0609098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8497044797c8ffdc40ce017ef1667dab1d036e69fd0c7eab48d09b1368e356f7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USDBB0608873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f40e34cbc14ede9325a5a0286b327c34d0bbb7dadd6858f34d72b0ddbdf9cb. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USDBB0609495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534d550c649ef1f8c2b5777976a4846e9fdcbd67356371446abc67fae0664ccc. 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/USDBB0608315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffb1d19338ffe46e99738c656b735186341a69d042102d32288d0fe01c7bc0a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USDBB0606979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db930d79333c6c0d59418c38d2f719382daee41e94c23186382e37d62568684. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USDBB0607524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8430e7ebde67498169f76359e5c63a7f347d34aa989c4d0aa3825864566382cd. 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/USDBB0607006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296e4e66208e57d768fb8eb48a41593f0d4610412871d61d464afb402010f03b. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:35Z), 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/USDBB0601181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ea059db2f891c978264482f9f367fc2b99796fd46d68eeab00017bc4cf6fd7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJI2593265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf0d96f4842bde20c7a6eaa58f8e9ac5a62d5403076d1ce807c06be7855dc27. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:06:49Z), 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/TCAJI2593279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf14db89c951e40a6aec4288c0a62775273208c3b29bc3a9fc365e1a0767e132. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:32:07Z), 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/TCAJI2593289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0243eb7a3ee10ada365191205041a564e269c82125a73002b6d2c49269714b7c. 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/TCAJI2593295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e9b8665d021345c7dbd604ed064756a4817fa04e2edff29390b441bd8abd97. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJI2593300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14e62ca59194a2dcf0e9fb2f8368a02dc125ba4e4c06e124addabb8b1c23d5a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJI2593306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b9f0b89332ec983b57d1be7b962e51e7a12d89cda515c77761a82419a628bb. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:07:36Z), 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/TCAJI2593314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83275bec1662c0e1283acc1b9343f32377e2e8dae0d8ee459a2150bc0187b17c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:20:42Z), 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/TCAJI2593321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f284fd863f013c5798ed8c124c53818f07416f11255e63123ac3d8be327c5f. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/TCAJI2593333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafad0981c3948f931317517d24618482a0cc9501453d9fbe1d39d74f90141b07. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAJI2593341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33e405657989879769ecf3379d28bd5efae9787f6b281fad5663caeb224e428. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:38:38Z), 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/TCAJI2593351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0775fe70707cab5865c885f511b2cf1f9c1e71b060f823455f9478c694a42f22. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/TCAJI2593354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6059f4a29865ebe62f61aab097c5b2b1adfa731ae251682ee1b9ff99277828b9. 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/TCAJI2593360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10c726f54f63b7b9eca686bb70981f12a5dd32733de66a0aa5ab615d13bccaf. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:01:53Z), 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/TCAJI2593364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dcf513d16d2554d819a00bd52a6922d67c66b1b2ce02db16f1dba753b702c3. 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/TCAJI2593368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3d240fd2de115228a5f1fcb08d99fc15007f2e1787db4be3aa8cd7060cfb11. 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/TCAJI2593372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69be2563c4906e59034b1ed9e3da40a9be1b2b6b4dbbc61101999c84ad51f52c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCAJI2593378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc3ad3cb9c4c2bfc7936c5abaf5fe187b43b57252ebf81a664a282d00688b49. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:57:11Z), 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/USDBB0609408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d09226c56dbf197cd67024c1266ed1adc17699d27b55db406500a7b8f4a75a5. 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/USDBB0607725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b99d528660781ea9c330f5888ad417ca6f9cf112621fdc290fafdd14bb8cf5b. 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/USDBB0605957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3300ca788345226a8375a4b207d9f85f96fb95fcf407370ca16973c41009d30. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDBB0605457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7f5e6b857db94606f010413fc5fb268f532f55af4d2713263a1f8c6ef3b5eb. 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/USDBB0606573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1328380b2c43174b63e8413ee90c8333b9f27d0e5991bf81d560193291a8df26. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USDBB0606744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48735191ca6aad66cce9eb6ad6c4b7bff9c9cfd26b15069a30f106550dc070aa. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USDBB0604791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c84efd6e2454f437c7d45d60e12b9ca373fa1411ba9f0e5ae1750256fb4812. 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/USDBB0605509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2b700259ad7edda14adfa164d884d0f226af9784d76f529514b9343da36c63. 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/USDBB0605978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349077bb1717892fde47fa8bfd07f76d58148dc5027f45264b8fa1dfaa5a49d6. 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/USDBB0604742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6793b859dc3032ce61f84d090cd9bd6ebcd4cc92e35262957a7ea59c3b466e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDBB0600661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d1bbf89dcbd2e89781cb5a18ad7ba4f8a7a96539bdb02ed6a144ce3ceb08e5. 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/FR96X1813955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133a90c7cf63a28192a047b220e6c145ca5b03e11b6fcc8718e5f05a225a814b. 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/USDBB0611038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7eed32bdf6ba98b8905285a0edb808eeccd14838267ae624a447c911908853. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USDBB0607597.
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 0x7cbacd63efceea640a9330f40b33f03789fd9e4ee716e4b28ab056ee52caa7a0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USDBB0607718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794b6c9aeff64dd81db1ce3018440aa5ffbf2f61b133a6dfd5c6ed9bc12a9529. 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/USDBB0605874.
Cuando Vuelva A Tu Lado (What A Difference A Day Made)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccde68dd5822932a82b47b8c29320fce253d2b9394f3bbff4e2069aa327e1a9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USDBB0607201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe133206958f4872664d3adc28fba0eeb3a219bb9fcc801acdca0b48d53b2e8b. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USDBB0600112.