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 0x3b530dab4b26be94656a1f4d6731eb101178b1b28f2f8ead7202ade3cee5bf76. 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/c36aa728-18d0-4f28-a4c7-ec73e9c8fb22.json and https://artists.proofprofile.net/proofs/artist/c36aa728-18d0-4f28-a4c7-ec73e9c8fb22.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 0xaf2dba9736bfbe305d3d7ea633c75a0d4d0d5a7feffeea9e9b8c3342ba8d156e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEQ121751871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b75e40f22df669599bb07406b6edc8ad320712754f69a25c4325c7067b1d8f6. 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/DEQ121751916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb8823df0fabb7a941992923605b138713c074b48251640353d46f6de441e80. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEQ121751860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7af9213e73f619ba06430035139d1643f56f3c4e47dd59a7ea69de18f9e04b0. 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/DEQ121751864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b64acb40ae1276ad6596ef0e2d3851735f4b0f3ba1d9eac1a5a6970798d41ad. 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/DEQ121751957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb91cfab4a9226e175dca077149185f5da15961564eb3d11973d0774ce7a92af. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEQ121751959.
late night looking at the planets from bed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9ddbe4c4709afa956cf5aec0ddea3ef2b049eabf7b4b601fd03d13cf4952ef. 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/DEQ121751963.
cute little tea house up in the mountain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38757e77ecf490887259fe42643f0b5ed340b9022f6b271278e1acf41f2f2805. 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/DEQ121751964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b566f58cb9b415c62f83844be98f373a00b5ca951fb46d50373ce3ee0f4497e. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEQ121751967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2cd36b86e5ff26d7f416cef0bc47b00aaf84e1846f0f124db4cdb46f3a7a94. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/DEQ121751940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfc490f7321f8bc46ccb7482a941f26eedeea29176d010f27bb92003072a75a. 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/DEQ121751943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba251a88db8b001affcf566d55e8c5f8e92e137fdc5ff8782fa1aa541c13039. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEQ121751945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4b6c02743228feefb807499bc852d92f9aa31416bf5a63bbb97bf41d74f54d. 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/DEQ121751948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ac4af68dad3d2dd2322ab22e9b45e8fc7b792f20aea1200714f747bc08ac05. 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/DEQ121751949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9df562e155608eac393896c02ee054e8b3c26223dbc44c1c05570cd5ea7878. 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/DEQ121751952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63b1d1b585b36df969065cd7f3dc0d9b9af61426d6cc4f3197b8f35509fcbda. 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/DEQ121751953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445fe864f7a3d29d3e9ff1eb82fca7a9ac92468d6673d568c1d954c705255c72. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEQ121751884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12a06769907315383f61f06aa304e2cbafb97353f808d1ae4a475b5dd26b9c0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEQ121751887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01606ce367c2ca253a4b4c2ca61a7cdd138b90be828073b11ec471e8c34219b1. 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/DEQ121751892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860b1de386801240b2d7eab8c9ef021af1df84a7257e60c16c0704edf9970605. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:53:38Z), 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/DEQ121751893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc0ead8b40c70e0fc25f05498bfc28e0a27ee95e3c34b4f97815f88d3089b9b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEQ121751897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af2ab2a113da28aad6358f53774efcc32edd6e23b96291385c3d74f1e8df766. 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/DEQ121751898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d68309e8e6b4e62c6d401b22b6ee7ae83bb746ee6f4f64f36e3c838724fadb. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:07:22Z), 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/DEQ121751823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a995d144581e83b783b39bbc689ad417f137505be4ac6fa07ba0c9db8b25af6. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:35:24Z), 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/DEQ121751827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf6db5f816665a8e6030ab7565d9660a0d3a728d1295076dc23be87158f81cc. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:11:27Z), 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/DEQ121751833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d23a63894a68ada9b4217c92d86756035ed22a81de590001147be5f9b70165. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/DEQ121751836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51250b86966704cbbab67775e31349783668f94a93d7f2073b16bfb1f2baecb3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEQ121856486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c00563d6c7cc15e5bdd0c1dcda9c510fb885f94ddd2400bb99640f3b73aaff8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEQ121856487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d613567f8c95fde2f287d3fb1ee0f690f9be6d74e6786e754961bc7b5d0d8d5. 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/DEQ021902903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5d70264141ce44f669822501c79aa03804cfb2f1077784f6d0a9519a9bf082. 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/DEQ021902905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95355708dc6fc08702aaa5649368f5fcbd8adf8a6f8db6ba2dd46d6933f957ca. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:17:05Z), 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/DEQ021902912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0e8568ac83a1cc09d281005825e1fd773cc8d08234d880aeee36e4796cdb63. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:59:20Z), 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/DEQ021902915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fe33c95ef1b2af94e43a295c45fba6382c48dff77b32653c7026a566d84ef5. 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/DEQ022283783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74693b5a496f2a41be053765458c3e05fc27a1cc28d21ed4230ab63f8dc0ac96. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEQ022283786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f45f0a698bf3c38b347439f6ae82b729b61ce58f7776aaae92612ea98da7a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEQ022283792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820486fd8403500d872d4d70ab54e6d265337d3671d4e2709c8a75f4d938c939. 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/UKZGC2501587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc67e17526f6a0c28ca847a2b4f8e9d19dc3a21f24fe418f018248e7603c4ac. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUBEC1840530.
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