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 0x21edb1766469df981da8e64e94ddb74ca08e4765f262acc6cfb78a96d8b330a1. 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/489df127-c308-471b-ad8a-b8f44de3c4af.json and https://artists.proofprofile.net/proofs/artist/489df127-c308-471b-ad8a-b8f44de3c4af.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 0x487558a5ddfb28164cae29a4f89e185d9e3b8859977faf4a63e8eb83ad4f9434. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/RUAGT2330932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe643afdeae35753a4234353413ce1bfb6136c757fb4440466ddb0d238b4fa16. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/RUA1D2313626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce8a347eda6e22ff44f766e974977aa6e999056638984c40922dc9280a1497f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/RUA1D2313627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2c45140056b729c89663d576e90d23797350939e795d9e17ebf015eb3a392c. 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/QMFMF2118853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b7e998b7fb5f24c686c8b200c98086a9d5764af8cb284148453d113fb46cd6. 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/QZHZ52191252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7770fcb4259ab1662cc74ad853dc46baaf4e45771f50c1fdf5a17fc34612cbe. 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/QZNJX2030837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1b73fd528a2f260c06404266822afd900ce2273307b1da0c36be9b2d5e4a80. 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/QZNJX2030841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23418c4e8ea641bd6ebfd12a2b087e541ea4450f7928d8129c1a1efe922eb99. 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/QZHZ51932650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fded9fe9805fb114276e99fc52f1ea2b78b9a691f8a68f6d0959b9f93f39f3e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHZ51932652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc8718203fa49fc527968112eed4ad9dd0a1336c29a31a1aae4aed002fe838e. 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/QZHZ51932654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cc04d22c1693cdb84606adb7b033bb57255d9910a20d92b58338fac641dee0. 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/QZHZ51932594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda69a35f5e276d1dd6188d50a0e3a52bc360e8dc4aa37e631cb26061214fe6c3. 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/QZHZ51932595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5890a1729b70aee6c3eba41aff1cd66a27b4351054cca2e567655be912fc8f1. 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/QZHZ51932596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6e79420e74ac374de83c511d3b5927163ab97cc7423adf1d5d080dd63c79fc. 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/QZHZ51932597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948efeb5bf77daaf046477aebbeec4439f7074e77dee6aa647497bb2c2fcc691. 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/QZHZ51932598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e684017d0348e87f3255394fcc9d44d75797ab3ff3d358f4b0ba705a209f3e6. 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/QZHZ51932557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c95add7641178f85d7534a97b80e138e9cd41b3649ff84f4eedbe33258bff87. 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/QZHZ51932558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42317cb4a9ba9359c51ff75d3daff7edcd1691e8f37dd6530913b605c7224682. 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/QZHZ51932560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf24162c89344c8ab937fb43c2b7517422a90a1c7441666725b03ba2f6226ccc. 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/QZHZ51932561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaff38f511c1abb8ab08a36d5e75d599643904fe3e73899d335d63a1eeb624f3. 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/QZHZ51932533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f9cfd7e4ee5898acb62d917467031ca745eb2a818559c29906db82978f68f2. 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/QZHZ51932485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cab9971775b551d73eb7298b185ceba7ee320b4f9fc0917bf0f22a3d3b1ddeb. 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/QZHZ51932486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60a7035e6748e9099bc09c590e379c3b545a24a62109d8ac31ad845895f4dd6. 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/QZHZ51932488.
Глаза. Рты. И что-то человеческое (часть 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4979705db3f1e8b9f42d0ed59439011373342e97e53840f83e67aaec62f54120. 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/QZNJX2160946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5b9c60ddf59445b5cb486d0be219ed2fca6c20c0615e99e15fba9ee3755fa4. 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/QZNJX2160947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe902abf31837c368661999d3f91d9d865d99fd5ac03d3aeefac97183cd09cf89. 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/QZNJX2160948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c980369ab04abd929188d20019558f1569b7d7dea4032e247397c1fc85366c. 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/QZNJX2160949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2682612e3b0bfd7d54c66580fb0aaeb5e92c4089c13689ed501e88f3049da05. 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/QZNJX2160950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bedb79a36e7ac0bdab2f3ddeb6f962057a0705e482bec17e6f219541907ee9b. 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/QZNJX2160951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f72113d2f2d78d3ed5f8207b13ef7ebd3c5f9ecf392d2c4e4a2d1f9f5345d3. 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/QZNJX2148726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6374c69078a82e7581508a66bd1ec39f907751b57b9fb729b8c96b21c0c203. 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/QZNJX2160952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa57cd175094401009f80c8d9536dafa20208e5d8468077b880ce2a96a6b1067. 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/QZNJX2160953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c424825819c954cfad9eb934f5f17f3814ad002deafb382af7851f775080b0. 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/QZHZ32157172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd011f7145547b040d2d6967b5475ea2236a8ba3cd245e571d293e5043dff2433. 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/QZNJX2160954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2c45140056b729c89663d576e90d23797350939e795d9e17ebf015eb3a392c. 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/QMFMF2118853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacf387cc30a1179599bdb82c7499be19b36ec2dc12e24a188be450b1cd50479. 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/QMFMF2118860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733979dc0547fd5068ecdf74f595baf4fe35701b294a08aed6421a658b4e0d2f. 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/QMDA62108282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2337cf595b20421e62923187ab92ed89abd47a8042b3f6ea2ac5a9dd6d5127fc. 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/RUA1D2276392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed7e6123f027e76ffa82c92b2a3b41751c3c3188008f056bf6b4a0915471def. 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/QMFMF2118865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a45a84d16713f4418cd4242c8c03f682fd9f7c457179de361d4bf88cad0f023. 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/QMDA62108284.