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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832932404b121318bbb48e2c3ac746055b61577a5bfe07807f6b3fe28ae5dde8. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/186880f4-cfee-4647-89ae-7882129fec49.json and https://artists.proofprofile.net/proofs/artist/186880f4-cfee-4647-89ae-7882129fec49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Enclave des Récits Oubliés: Sentier Vers les Horizons Infinis de la Fiction
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc8c364ac04ac7a7f6c9ea8d07d94656f597fbaeb16a504b4795c00a61cd1e. 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/TCACB1400680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c16e7a225c93d1ce46ed52a43776835501b509c28421dee733398d5059bafd. 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/TCACB1400681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a85fc1214d31a0122b3e22524da4c2ca9a9bb2b5012d14d70f048ab079fd407. 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/TCACB1400682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9668f8211055f1c9d00c15e635139c8dd8371e8f2dc021420cd7242d28176023. 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/TCACB1400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecb9ddaddcaa1c3ec84baed213104ade887b910c20efe84c3672b61580b227c. 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/TCACB1400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8401508cca0f740fc44187a557deb8f42a681a2f25c9dd1ba3f2d638231a6e65. 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/TCACB1400687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc733ba4a1fcee22a98324d2173b684f6e2c3886dc2fab271236407f5f66b9a0c. 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/TCACB1400688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13641297f5d1a59f222b7aa7a18c66287174ca8e338c91c5de14fc84195f4dc0. 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/TCACB1400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28cee03d4c5296e05763ec48d50e1ea27cf366633a470618ff3db87fc53852c. 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/TCACB1400691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6349bcbf98554993dd92de1c5714f5fdfefd8a48d30f7d6bcd8735bd5421344. 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/TCACB1400692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2017da03b6ee2f0bc89db76f4aed7cb2a437b00674fd80d6b5942c82b59cead. 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/TCACB1400694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c7ae237fefebefd08da3534521408c2f83a423ee1aff06319123c3842d9fe9. 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/TCACB1400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5fb8e73bbcaaf0732899ceb19bb4e0437250e25290d53a353c7ee44f050e6b. 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/TCACB1400696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d78d47f17d45a6ded6747776d6cbf2e7675071bd267f261523aa9fdea8254de. 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/TCACB1400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615fe06cf4270277e4cecb1d620016f02f485362e5eb0f316edb764a446674e3. 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/TCACB1400698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15a91fdf0fa8e9c132d886795a4e4ed2efa14f043ada3bd981651a0adc71f7a. 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/TCACB1400699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255c37bf213fd1e075295cbb9913a390ca6ed597293e561371bc88a21947153d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/ARQIW2410453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1680562cd671c2f8d0d6247171bb73909a90a4ce3164266b0c6f849cf74a4b03. 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/GBMA22397136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e29adbd55c0fdc4c160a06e5d2a4d2347d3d92448dc9bdff52eda7e0ee9c97. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/GBMA22397137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd6d3c2efa8a392b6f1870e592d4da2826220c80282245bb585845ca839e256. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBMA22393854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a06db8f0c44e8c3933b0489a408ca0dd69759d0229a8831535b95720cd5411b. 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/GBMA22393855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d0e9fb2b42a524c41777fca8dc41d824da8cf498c2683b778369ce6dd36811. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBMA22393856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5339c73ecbf002a669bb7142dc9ff238ff6dfb9c24f97821a39ff3a6aa55d89e. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBMA22393857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3e57a556a7983fb852a7561546536e5a7082a7bf7b862e39376d7a04bfd5de. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBMA22393858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd803efa55be3bc40370aff0757c089ca3fe7ab6aa48a2880dc443fde09b5b10. 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/TCABI1288196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc3cf2a1792b6a3bfbdc71b1b50f99486e5aaa1e193067772a6f22e74eac696. 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/QZNW72313695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827d72de8d27ebf72ddcd5f1e5636dc91f12bb9d5dba59729436794c815ac49e. 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/QZNW72313696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03685860543cff9e99a193a77962967e99c32b19620895150f3541109fa9605. 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/QZNW72313697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1a5077d30b05cd89488f67b891823ed94ec552aec65e371c6968f97b0d6d42. 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/QZNW72313698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be36d01cec067bfefa0d9b89e74088d9e7120231cd9afd41452363eface3aad. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZNW72313699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf63e99341f2aab8238e2d8fde809cfc77c2e479339baa8ed627a8f6d0767ac. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNW72313700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fd4140af875874af1b5e78dc270357e31470b6f1d6dbe7a3a5928f98c4636d. 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/QZNW72313701.