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 0x21469723a5415a74982efd6102f14e96c0bffd3473cb958a34dd61b7e5765e65. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c2b52f4-7a52-4ad4-94bc-9310dfe75354.json and https://artists.proofprofile.net/proofs/artist/8c2b52f4-7a52-4ad4-94bc-9310dfe75354.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 0x194e935547e05b37c562cc25fc877249f6935eb9271a8b76109dfa00dabbae70. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ITM2J2580797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49edd7ad08502e39e7565e3e778d9d67ebcbd1cee427eb4c21aa90741956be4. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:32:57Z), 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/ITM2J2580786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a4ac576425fcf93f85709dbf276e312612518a46562e8a9dd6096eb1690ec1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/ITM2J2580775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d5ecd6b9afb73e5b85c6cc33cb6c5d299d45f84eeed8a23fa0f506c27cda92. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:16:12Z), 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/ITM2J2580749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb138c71886569a3c8c35d1d9b3ce3e817be9496c59ee45a5de28fb133990bdd5. 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/ITM2J2580777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb8d31d997f7f0d46eb9e45a9b1a4a35e37ada7636e3f5868607276536c4132. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITM2J2580766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0afd64bbc08a14d12421a460636eccdf40870d7ae45183df9252284c462062f. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:22:32Z), 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/ITM2J2580763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebc39c206369212f58af2e0231aadf16d628173cd3f11590b72c8af8432e889. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:09:19Z), 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/ITM2J2580789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dfbd671ac6fa7c0f00f89e1faf9d75989c2f731cf7db0de0a824cf261d24c7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:32:17Z), 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/ITM2J2580788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03681d56374769279838f7709bac5155e5e171c391c1ca314f6a0861ac7b1d1f. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/ITM2J2580761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a00bbfbefc92a7ee6f3d054b385385566f8f67f3865c8e3e4978711c4a0716. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:40:51Z), 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/ITM2J2580754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206584bb2d9aef12460b8fc57dde8f2aeeb9006b7df8d5279866540f8b022c81. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:58:20Z), 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/ITM2J2580751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ddb835cc27660b99d6383301abbb2cdf582a1cf9a9d4ad0e9fc7397f857df2. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ITM2J2580790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ef5bc1af51fe65d6e67689d91ca45a221e97ea05c93057563093dec82278a7. 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/ITM2J2580782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959e00a7a42acac06ae6ffd474915ac2137f70e304c74f2d84f6a5c24595ddb4. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:55:16Z), 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/ITM2J2580772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e2a7732ac49a0076b0fd35c65f4df87cafd0afa9af34d413ab4441811811ec. 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/ITM2J2580767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460d9c3e0b5712fe7c9dc13c3d640ecafbde214d3ac69e43a301578fef072098. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:08:26Z), 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/ITM2J2580753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6625d7ab7f447b4fc20a214e2165c74e1042ce787c9e05f6d1ca23c379840a42. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:14Z), 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/ITM2J2580793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6d812be132d79fe0a39786ed94fd014d3818d0e13360cf918afd1837e35c0b. 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/ITM2J2580778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70b5aa48feaaf50385ed3c08b732c5da890bf8d2722aa5a6f337a00491e64fa. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:02:19Z), 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/ITM2J2580784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d9a7954715584eb6b5e5bc18a1dcd43dca8a8be8e30892ecf03d64946c4930. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITM2J2580765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786be8eec62e6761e540c430a6eb76db1905e49aa3353fa98e72cbbf28591167. 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/ITM2J2580795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f21aeaa6df44623826d4c65deb267f083035fc9dabb4ce984899a7e24fb85a. 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/ITM2J2580768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d3a581ed18440d353885ebb49cc1cc9c4e4ae80fd01161ca29265c3b76cbac. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:03:10Z), 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/ITM2J2580757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4d5af5a64d509c2f0a80f13a22484b6117364cd8d086c631f4c6585182d05d. 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/ITM2J2580780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8027c3fd6876e112c460b706f7be3c5e67f2b6b9bcd5ea5d4d2c0df1a6027b2f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:32:30Z), 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/ITM2J2580776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d998ce230c90f3d528082ed4bd75ad107fb0e2d13ade916e1580552417eefec. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ITM2J2580774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd9ef9deeface0d1fc2a2eed1570f9fcdb9f0d006842b3af50b1d70a12c46f8. 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/ITM2J2580771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb387d45a1772e18810d28c0b97a83e5133f3f2b68fc599bcb5d43e185441332. 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/ITM2J2580769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63e5e2a4e16b1b3289ed49fb2ff14e27bd5d6e747175af4262a8d9b93cc9016. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T07:17:59Z), 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/ITM2J2580791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cb22b6d9ba8301fbb52dbaeb992f38f9391f60aea58be427829b1c227f8e9c. 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/ITM2J2580796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183be26b9198e19975be74a450f67f68d27be4588a540dfe1aa660f85c52fc14. 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/ITM2J2580785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf01477f50633a693a17cb7fc63c52eb8efb595145ecfccd1d67907d8f4733ac. 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/ITM2J2580764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3874af60b97da9e65bf621599be3762a2fcbbac95addd0ebc2da117c24acde58. 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/ITM2J2580755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f08f1ee0ba86a15a2a0bc15a77031182d2d567fe6b5a6584e62b4b0fac1edb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:37:26Z), 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/ITM2J2580759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd12bf0c97f71a4ce373a277fcbbf2e34d79f3bc60a7a0c033b3fcecbff30f7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITM2J2580756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab5c815e28b728af1c5bd505e85191c4d968eb295c77f87fdd1a16e754a5fe8. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:45:30Z), 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/ITM2J2580792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8f57e36fcb93db4e7a17437d58958aa0cc1ec63904d19f5f519eba5780ade0. 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/ITM2J2580781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54fcc02d33fc6cbe757a66dde2f2e9b2d9ed6115c8bd3dc4273a18dd60d75af. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ITM2J2580779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62eb42f27e21ce55ddbb99c861c5240fd1fb9fdc175e72e1206d42b02f79ca2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:21:53Z), 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/ITM2J2580798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b75314f2724e12423dd5b8f884e8ae0581ada9920021c3cc5b1b40c65d720fb. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITM2J2580770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba7e2ffea5e605d23e80579878a367d8507be0d5c6b36bf9a0bd6071ccc647. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:58:01Z), 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/ITM2J2580762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72e4aa1720273a109acb172bed5d62cb5c4a946192ccefc17a0d608818d69b9. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ITM2J2580758.