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 0x2f37a72fecb4cc8e3e4377de69a962ce1389fbb949af6e02cfad888b8ff82468. 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/46e95106-0c1b-4f70-93fd-59f8698d2282.json and https://artists.proofprofile.net/proofs/artist/46e95106-0c1b-4f70-93fd-59f8698d2282.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 0x38ee76573488b4f0b65c4a3a28d193745aaee0164875e6e705ed443bbc698f3a. 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/QZFYZ2228984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d4ba862deb1159678c6922f2f17464a2d33541bbf0b4e1a27b63def8c1e1c5. 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/QZFYZ2228985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78e699401df2fab9f895026d90c83399a9ddafdc162b419007af7598e4627bc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:32:49Z), 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/QZFYZ2228986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763b97b3f333591099ad50fa1f4988275d7831c9830358cd9c3eefd524f0e303. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:35Z), 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/QZDA82267657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bcb348655797bec4cb4ebabca2c2ee79bfae8d880e0315f29d6ad2f0e622a3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZDA82267658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc439260fbf03958fed2ec16e3bd6e46d512248c39680b86322da798319460b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDA82267661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e85c2d45d7da7d60b55510ab01aadfceef049cf24598d5b49adc5d025b4262c. 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/QZDA82267663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef50c49d938a179ed8f66f2738f718ea41117996963b0ee9be4b12d859332d3d. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/QZTAY2217972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b523958e0d67d78a199735d1ffabcaf006fff1dc14b2a3d63b7a357532cf7b. 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/QZMER2376889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91af329f990ce6bf2e824fbcdf00776a81811f9526fbca1ab99dbde497dcafd9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:46:42Z), 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/QZMER2376890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf798af099f7ba4880c85e378ba31a9217b6bd3ddb5a82e5bd245fb03b503a594. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZMER2376892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165c61444d3f7f3f9cf39d76d8bc8aa4923772eed57725cbb8ac7c387681c83e. 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/QZMER2376893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22db1d5ef0f189382c5bfcdbfabd57cbb3c271c503ccf815b84f3de9b4f2d034. 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/QZMER2376894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6a6c7c17fad341350c07e482f0f96f6288c97e64ae6f3c5c4ed816a9eb57fb. 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/QZMEM2423452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514377e5c97c52f9e4765ecf98d4594fd6214aa1075b969a336d9d17e6d669f1. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZMEM2423453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe986f5df1ebe94029532d6f75e70fad45fa874b1e00b11421bdff84ec9c8fbd6. 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/QZMEM2423454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b4c45f5430e9f99437ff7eab5f9eb0a9a009eb599660fb55c316f45671e5a4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:00:13Z), 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/QZMEM2423455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a243e1993b2da0574f372304a908b16a358fcdb1904441d08d3c3591bb921ed. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZMEM2423456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b178b32e42cf4ea99a90e23001c5ed117c72f6c3d5d2cf175aa08f6e400ade. 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/QZMEM2423457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeffc8fb59b2af761760fe8d328873dcaf63803580dfb8985cdfca6bddbe0057. 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/QZMEM2423458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e519319558f7d6763a26c4693944091a5e230536a09be920fc7271e7171ffcb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:21:46Z), 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/FRR642500658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c7735c4711641ce289cef261be209376cd9b0236b23cd2cd6e2feb2bd133bf. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7V2523595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afb7b01350047516d390a51926407d48934561f710a12072cc29af20b013507. 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/QZHN72225860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31fdc18b44fe1fb26c63c192d771513e2727ee3c7fb8ab83f4909def849158b. 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/QZHN72225866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09e60c2d330e015171839a374e166c85505ad5048227cb843e6f8c189cda7fe. 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/QZHN72225870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3022e22bdd1dc43608862bce952780e92169bcfae1c359905a35ef4d98d551da. 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/QZHN72223877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d009824c41766ce72e8f53d13b7087668e57ead6334de7ec8cf7a9b78c343d. 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/QZHN72223880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bf905cb9fac59fa0ddb2d77b7688ef271035a6a2ec30b90ef704e2d4473233. 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/QZHNC2138590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233a3c7b81661089888f202fd2c748e673d950202c5d2546f017882eb6a81d26. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRR642100340.
j'ai la main trop froide pour réchauffer la tienne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d85eca00c3351bf869f9fad04eddfa65f974fd8310845ff0a8e4195ed9fb12. 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/QZHN52490798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32946dd14a428a68321fbb1286f23717a73bb52eb7b1e09b70d9205e1c6b699d. 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/FRR642200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61e8c5fdeb1085ae09077d2eb7437278e59745e77af1c0bfc782e07e4c746e0. 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/QZK6J2459215.