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 0x167712cd1d7291b0f592b37ed07ef71830c579d78700ae4ad6274ecedf87e276. 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/dc03197e-08b8-4f0f-b3ac-ba5ef1c95547.json and https://artists.proofprofile.net/proofs/artist/dc03197e-08b8-4f0f-b3ac-ba5ef1c95547.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 0x0d9ce1f9f1b4e491dd1822bfc7c2590a56340f4b071766c71a9b2d6551844a45. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/IDC302111318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaf2498d270937615c61e02e1fd90eb7ac20e4791ac9a2468e46a7b9eb16305. 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/IDC302111336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd830d800c9c4ae83c2d5196e206ff363cb3ecdcdaf0e3b24d144682ed35b651b. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/IDC302111337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a122e6804740da14ff1ad337834fdd21f3aa30a32c8f657754321bffa755565. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDC302111442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972274d31d21d1aa099c56102f95c1fb5fdb29da45747a963254b393619b6222. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA712200673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcf87d13513a78b790ecd384c365788e0d251cc0aab59a21c6dda1a11739dfa. 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/IDA832108580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6f111dace209c51a5cc024f868751f980bde0fa4c7ed213302e72b0421ffaf. 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/IDA182234334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea9ddb927b494b24f314fc02c7dc37e365fce09d04029787e76a3a833672cd0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYLR12230061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6b827d7edf37a8a39b9b298439226a3cdfb829a957c04c5e6bba0e188dbe90. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA632311073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497e55869790f8d123fbda1b725329c169053095d0580a088b39d2edf0c07c09. 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/MYLR12330034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b51e193fc894440c7b4152c2682dfae353e1208e6a08350c2868173c96b003. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/IDA632311079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca40c49dedcb4df28485657fcd8f3f07c5dfd7598c8e573d3dbb8ba0643217f. 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/MYLR12330051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34f197bb8dd618ef4b7d4e6d90deabca8e64ef8fc6dfc15e054e8c36879b8f1. 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/IDA182234320.
Sia Sia Mengharap Cintamu (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f19a3bedf71114ad2529705122296aeb1d6359ea11ba1bac3557013f18b82b8. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/IDA632311091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15303916455b969cc4679b456e81d4a6368257c97f4cc4b60ff8c3b44dd6ed67. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA632311096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8f5076471b94a773bb8bddd2ac2c293daee9b46143c1d1b729f46c17d1fd31. 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/IDA632311098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd29597b565d097dd32b656432b6c1a4aa04939604859ddc39ec9fd19e0d80. 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/IDA632311099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15212780e4d5ec3f313dc22e8b8797e296df7e9f7d27f4919e89e8ffdf638bf. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA632311100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6041230215c04adc4b4a838a2bc133808f3447ee874cae81fdf3c1e01b99c. 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/MYLR12330065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd500750185fec1cce1c0ed773bf65307135bca9090d9447994428f9c2afd1f0a. 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/MYLR12330058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df853471d2c2e5f47fcfe6a614af0d74811de4c8c9319fed73c5bf14869f54f. 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/MYLR12330054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2623a3b27b4541e25bdd93791b93e854f9c61a6b20edee6734b02a1ed1826fd. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/MYLR12330053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff162e610653c6c6057f2378a64d80ad5475ba4705a40d3cc26b610fd329e9d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/IDA832303176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d8bc5bbf9c1dacb45285abf2fa012e9e0d0614ced4a2bd68b24fb76fde3495. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA182335533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178e82c4b3fd7d7865335b183a5b78b335031fc250e791286eae1f5a7dfebbd5. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/IDA182233435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ba649fed58af74c9c9e3287348a074f8119d9ee88da6e3565d5d99eacea2f5. 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/IDA182233426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4dce84583bfcc4ae80c9b17f324fc52303e140afa289c287fdc12430c78dc. 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/IDA182233425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83490dae8dab97e367fc73ae47d31ce2f0bf355529ea3d99c9833ebf61b774c1. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/IDA182233434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dc1e1339b8a49614b1c96e9f30095124f4eb2195502441b942c2ecd8b0f2c1. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA182233438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6554b0980920a8b124f613183d814b6a15de11e7a63d3200ecebed1a99af99a7. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/IDA182233540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223bfd332314adbf0005814275dc5ad5e4885c6a9329fe9143c9250edae3340e. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/IDA182233543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc442c48a676e614ac251a1bd5d0d37e0b876a40dbbddb48308413005a666152b. 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/IDA182233545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18abd0a04851d8f8c2cbe5d5a63274d20cb65e8735fd2a93c4a469e7fed15ba. 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/IDA182233548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8d251181932b8c56f7d36678e4f7c06f6e2988a6536989ec185f9baffc9f54. 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/IDA182335836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831ec43939d5a062168704bd23290e829d1d7de6147184eeef192be09801aa3c. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/MYLR12330087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27052cc2a8ce0b55f3a3f5543f072fc3bb6892f8404b0fb7ceaba4511545a5cb. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/IDA632313194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b6f72578c27746851684233702707c0b69b301485e032e59a9ea5cfe91e104. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/IDA632313192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777ac98e84507705bbe4d1e5a41a0f14411bbd109876271a2302abc72a9edaf6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/GXD7V2336643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ab0989c8d1a6df718710b81e6fb224b483b8b1da5c8aa90d0066c4b75b6e48. 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/IDA632523629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4405c3b5189b767831b298fbf796d94700839a18a8438982dc481e024851f68. 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/MYLR12530146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4e837ac407fb44fcf21c23c0719915616428741a9137f5104af645f2800f3d. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IDA632528754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4583e9d85f7de9eec543a5ca5b3507e8ea0ff85b845b61d5e8b470db23ec1cd6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYLR12530148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e346749eec3de7b609cf9f91dee1c646612841f0e71139a04d5b9aa1ebae33. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/MYLR12530202.