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 0x8498e9501c6bf70bb472b00f8c90b0f76204f1a67d74bd3deecabd1cbda1fd11. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d6a36e0-77ef-48b1-b731-c8a02584abe6.json and https://artists.proofprofile.net/proofs/artist/1d6a36e0-77ef-48b1-b731-c8a02584abe6.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 0xf3e2245df106f0665b5527cda9afb2ef3dd3cb78e5b105d7def265901f745eab. 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/QZK6J2036281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a2b387d3e73591c54b822770d25a61130fe432229f4bd7c7447e1ec6e96c42. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2207241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625dab062f2ae6116defd2ff40ab0144411b59fabbc0c924ea75257b24f14e2f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNWX2255134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e346b5221937a4f300a4980a254918024bf57eca1dce69934b4d2cbd6a8faf. 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/QZNWX2255137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8576b0c791b9a25b87444220de3cdb409c33cf3b756d94fa636e0c778cab47. 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/MYLG11300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7231cd92dc2389e807a19fc9902f8b7f72f647a21d1f73c39378e99bea17b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYLG11300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1f439771c4ea92a8cb7c9949881682da72c3e4249073ead248d8ffbf4bed66. 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/MYLG11300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21781072e23acc4ea8b315fc7c6b49b5a02f71d282af9d00e6a7b95ab8ce1d8. 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/MYLG11300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa6e529948ac11ae963138fdf145fd30ee31aeae8d7d78a344089d3111c370. 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/MYLG11300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b251db12c93187bbff6d2c46da1ab76e803ffa4f3b6c6f46e0f71570d94a084. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYLG11300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f14a69fe21aaf6ed0b004e9d26223c1cc2c70ec209fd5d52701e25aec8ed6ca. 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/MYLG11300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d3139773919f505994117c5bc6f150745a0e52e1ea029472f0389f0632e6ec. 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/MYLG11300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130ad4593d2c67ecfeebe2afe6609aa7e25a84245ac7df06d8a9388809ab424. 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/MYLG11300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75ebfef1f4873f7953a51052a9859502da742562c23a63f5dcb365cf9108a03. 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/MYLG11300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71f5cffe4818a44b00a30c9d7692683d47d6f22a304c4848cedc36c1c471e1f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MYLG11300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63ea09a46023e72636ba3dd28f00b1b7223db63c6a90abb1dc77ef659c77349. 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/MYLG11300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c38e1fb6d56500c483604bb88b200b30f3efbbf207c35fe06067b0132b105a8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/MYLG11300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5b1109dddeb576aa788bc6f4e51c878687ffc3b267aca492b1f6bd6f0a2e22. 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/MYLG11400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877bb1b427131a15adcbd35c529e7f8da8f603dc94bc954a3fa2945b0b370f8a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MYLG11400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0abc06f26f0fbbad8bd8b6be3f1073afdc5caa478aaa6f624f7299d3ec8e7d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYLG11400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41acfc8f14bc7a12d2f26aef11f2226f62aaa2c4787bf0725afda63b129aeb9. 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/MYLG11400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d99ec59d897e106eea515bd8544728b724da3b03fbf4d6c6f865b5937c11bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYLG11400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef420b11c1d7b0fba0f5c5221c14353ff5fae1fbd054b439412b22d91ca959a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYLG11400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4a25309646771ee5669d4cc0694ec626b398d8aed9108b24e50b4c65c5fd7d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MYLG11400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c532da8f0aa4f0eede229a43c3a8c49aeabacc6d65e4223a745ffd984c90ce. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYLG11400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7831b17f16e996765b03a7887107048e9be9bb02f240aad7f395bbb7cce1d80e. 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/MYLG11400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e2245df106f0665b5527cda9afb2ef3dd3cb78e5b105d7def265901f745eab. 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/QZK6J2036281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc2e0f07c56ef7e0c96321cec0f42accda5cd8d83d7896f2746f08abef487e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYBL11300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca116e690ecd93d1317a959bb9c8d0325f4b180688962c59f6f2965807075cce. 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/MYBL11300046.