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 0xa281c24a5100f2817c7fe0fa43351ad6abe9bf8ad57e757be5f7b28fee7d8882. 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/3340b5e3-819a-40c6-ba58-fc1265cbc34f.json and https://artists.proofprofile.net/proofs/artist/3340b5e3-819a-40c6-ba58-fc1265cbc34f.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 0xade5114009eb9d2dca3f84015a294fd3b131b0d3ff423644023ff604515a8aa8. 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/MYBM10000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a3b58bfa7db7008f2ce879263a85b5eb5a7f57bd5cf8fe02fc4cce64e647a1. 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/MYBM11200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443f28a13c39b110b3dacbf71fe926edffa0ce2c9288a1f0b5a46a95ab22b244. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/MYBM11201146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54a6403dad10112843c19e01ef3f79c41c8a0496ca548868efef0594da72fea. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MYBM11201139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04da252a1eec1290243edb3b66438d9f3e74910a57f2adc1b2a489493a6cf412. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MYBM10400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326dd83e5064ae3ea0dd45ec2199ef4815a609143dfd1ac07d3c214742b536ac. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MYBM11201138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bcbbf345aeea932764cea1a09cd734660f48b0563afc827ef979d9a474ce0b. 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/MYBM11201144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0223aca334ba2dace86574b37916a2589c195667a202dd7793ba647024d2ee95. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/MYBM10000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54a6403dad10112843c19e01ef3f79c41c8a0496ca548868efef0594da72fea. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MYBM11201139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92128188f57481de18ab4c9ac423e17a85d8bf8a1876f55f278e541c765ec9e4. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/MYBM11201141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a3b58bfa7db7008f2ce879263a85b5eb5a7f57bd5cf8fe02fc4cce64e647a1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MYBM11200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ab2e61eb28bad53bc10c9077e1daac9cde0486ecee1847b7bdf6f1f790112c. 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/MYBM10000346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa659194f8eece9a5de4281ad3427144e1259fb21b3dae28fc8998c08da7d2145. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MYSM14200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aee995019c946f6d8b1dea5146c1b783f26f91d2eacf1e9e3e60ec69d23883. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/MYSM14200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d65a97e106e38376185942ed5d760012a367ac660c99651180d01f38f68bf. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/MYSM12100191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3f2e9a70c7cc590775e4dde1144dc2622e0d2cc31b4347b3fe86dc05b01552. 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/MYBM10000342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99512d5aa957afeedb407545475448bd96c3438b103a1f26da8039ccccb8528. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/MYBM10000343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf3f38eb8a0d2f47a5002c274cb3a8341af8aea12e81ff310728ac2cd984614. 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/MYBM10400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1f41d30dab6465ca5b31d1125d15953dc4a582605bd29660dcdd264a78f106. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/MYBM10400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9215656ab71d7f096fcc764e1c9a8233a69717a582106ac33f7dd7fb2e0ec9d5. 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/MYBM10400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3f2e9a70c7cc590775e4dde1144dc2622e0d2cc31b4347b3fe86dc05b01552. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/MYBM10000342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99512d5aa957afeedb407545475448bd96c3438b103a1f26da8039ccccb8528. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MYBM10000343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2b57a4c753c64419e61924a8c10ba35a6ba60fac7940da855bce0a70bbce18. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:00:45Z), 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/MYBM10400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ab2e61eb28bad53bc10c9077e1daac9cde0486ecee1847b7bdf6f1f790112c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MYBM10000346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9b51773417c1477291d40e2601aee0074020be5448939ed8c21413d93758f4. 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/MYBM10000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7bce0a3d22a1794accbfdfc9e231fc52e974abbe41ee369d6b25382c6277fd. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/MYBM10000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade5114009eb9d2dca3f84015a294fd3b131b0d3ff423644023ff604515a8aa8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:08Z), 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/MYBM10000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb223f88f10da8ca710965291f20748c93b74c72110b9ab7dd02f6417c51ff32c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FR2X42293547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a27e0fc4c09eb2b873f26cfae6526a378ac259391179db0fcbde11a4fa4fb1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:57Z), 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/FR2X42293549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765faa0697b4b205926377ce6002b1c386682fcf772774494af9264c1f7ac60a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:46:16Z), 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/FR2X42293551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b271d849d7f5b1cdbece311c7ee8a4c15584bc6912f29fb9b380acaa46847f3. 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/FR2X42293554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1849d1c11cfc0b46bfda5a32685b13167675149748a5d934eff045f3630f6370. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MYNR10200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61052bb409cce2f84fd8b78cd68e4452ec2ef8335070b7e929a214efa8e6c83. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MYNR10200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8d3539cfc711afe11e914ef0046dc0264a4f6619ba2f1b222ed3dfe1ca3e4c. 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/FR2X42293882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7477700695ac41f3fc00df36b02f825ba6a69937966daf083cbdd6f2e8604e. 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/FR2X42293883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e4d6858a10cc647f0ebe04f2de968b3f666b8523db0d0db27450f74cbc304. 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/FR2X42293885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19d05e8fc2b646a5e2247f84a87e2783f22cd6b41e20c0b876d422ada765f8d. 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/FR2X42293886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045f37a6fb0eb95bb9fdba6aa3bbf9de314ec82800eafb2bac757b132c98a740. 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/FR2X42293887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e5666f2eb06e86a97a4dfa96cb66d38078e5f2a8e6bfd6539b97a023de19c1. 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/FR2X42293889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008896977c7ba330c3b0415fe8f5f96b8e0bccd09649b016af5d8a68cbb569c0. 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/FR2X42293890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff08295eb5e0cb345461f4b657308363be96d704be1b788f797b03c2fd64fb9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MYNR10400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf3f38eb8a0d2f47a5002c274cb3a8341af8aea12e81ff310728ac2cd984614. 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/MYBM10400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aee995019c946f6d8b1dea5146c1b783f26f91d2eacf1e9e3e60ec69d23883. 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/MYSM14200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef97e204e9632f24e4cfa74fef7b884275fdc15bb41590be5d57d987f58c304d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/MYSM14200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aadb0902bc982f650bbee1745a832c9f54c0eab9f3eb74627d0cb760c5f6463. 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/MYBM10400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692f09392e65d9c943ac02fd79adef115dc6af143e0905ddf9c10afe63e8581f. 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/MYBM10400191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20492204d0a01ce7e88dc25b3a8de63e7579f43a619c99ea4a3aec0f181dd89. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/MYIT12100045.
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