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 0xf39bca1c629545011e71dcb2770eeee79cbb5375bc0bd78b7debd8946f0ae54f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3afcd087-ac9e-4a6c-b5e8-a275209502a5.json and https://artists.proofprofile.net/proofs/artist/3afcd087-ac9e-4a6c-b5e8-a275209502a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
AVI (Joseph Shabason + Vibrant Matter Remix)
AVI - Joseph Shabason + Vibrant Matter Remix
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 0xf1190f02edcaef6003141deb89c88919aafaa33d66c9afba156ee39ba4e99d49. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DEBY41700158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d9433955bcde0d1e09bbec188e936227ad4f4cdc61faed65a0b3d81afb13ed. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEBY41700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1eb65ff0bbd2d849c646d76178b6fae7b0d83dde175be3f334cc56eda3a174. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEBY41700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0095d00073fb392f3e1cc75c7429d520d295765a4bcc0100a9826a65728b17. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEBY41700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe43423431c9082300ffb408d870276212d31f0470022c04dac62935f13a776. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEBY41700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f1393e3d9200eb7ecde37e6e9d22950b134202b0797d9f221ed57bb6dbb17. 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/DEBY41700156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf577ae225b4196f00ecc9e8ba8c86c656bbbc55dbe1a1d81fca373eb58d8adc0. 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/DEZD92000271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb265fdd6ed5701d3e5396ceec9aee2a04e385a2fc4942cb95eb9c79b714dca74. 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/DEZD92000279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeac067e324bafc2f53d3dd23c36dcda8305e6dcbe507e29d6fcd9ee0393410a. 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/DEZD92000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728bbb8c4aa268a71a9480babc954071cec6273401aad59c6df7fb25e754cc41. 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/DEZD92000268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf577ae225b4196f00ecc9e8ba8c86c656bbbc55dbe1a1d81fca373eb58d8adc0. 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/DEZD92000271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeac067e324bafc2f53d3dd23c36dcda8305e6dcbe507e29d6fcd9ee0393410a. 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/DEZD92000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc26d4a7ee70247be22aeb962696e2b078f8873bc9e1840170a9ef8dddb31b46. 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/DEZD92000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb265fdd6ed5701d3e5396ceec9aee2a04e385a2fc4942cb95eb9c79b714dca74. 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/DEZD92000279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c203e617359a1ac92b4428ed3067a20c046a1d4fc6d8666bfd913f1d023222. 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/DEZD92000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6359ef9822120fc06cca0e01770fa35688a7797535ae8d6b20e78bf9a8ff32. 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/DEZD92000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3475ca0f1d987158370238af22d5a7650b43fe574db06241b3eef9aebb3de68. 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/DEZD92000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7189652d4afd282aefeb6704413c4fa0bad1c7de87379a7d5c397e8f20f8e9aa. 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/DEZD92000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152e051f1a61550555cb8395b28911dd7a18585d731287e267957d716d8def0d. 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/DEZD92000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7760d1795da180189020814d7114f86c260ddf79528cdd9c02cc68c625614a38. 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/DEZD92000310.
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