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 0x7e42c69478315e3424c41f2bccb097a00adacf99cd3b091ac7630dc80d848640. 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/eadef6ca-cb30-4d33-b8bb-e0df0c8f640c.json and https://artists.proofprofile.net/proofs/artist/eadef6ca-cb30-4d33-b8bb-e0df0c8f640c.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 0xdba127cbcfdff827003fa59066d53c194aa334fd9dc93a4deeb5c171f82c8335. 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/JPV752105380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d62936ebd300cb218625c90fcecce292b044a1060916ea549b76ca6e761bcf2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPV752205746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87f89b67e42754f1003a8f65c7c45798ee2e3da694c638dd0d0d48b6639d7cf. 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/JPV752205782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a543926bafb94d2dcc8f4a63db57ae4b3e9bb0e58cdfd6e07adf2f2b9ace331. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:58:40Z), 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/JPV752205747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeef0597c261ef023bdf94fbb2c098f5806c0c6e90ab5ccc8d3fd483be169ed. 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/JPV752205783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eafd5f6dfdefaffd04c45452572722d472bc7b172f0e07b8d1dea594318adc. 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/JPV752004008.
Be There feat. Hiro-a-key - Sweet Spare ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad815595724cd7eb6adb5c2e1d84a530025f64e8a8f5fdb0cc33d473e580292. 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/JPV752004009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3560726d3e01c7478ede15bde5ce5edb92cc4b77f8d829f229c376c31cf056d. 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/JPV752003956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970ebc304948d881dbbc29a85f8979b8073eaf7cf5a975c8c7b609af39e870a3. 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/JPV752004014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef69b71a292355923b12087813fbf7736e25d1cec6b3cffd86f6bda6d661a92. 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/JPV752004015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fca18061f532108491f1b141a4538981c26b6326774cbe381bc8ac0a5ff124. 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/JPV751901078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9918287d22df9dbbe108713e6996c62571d6029feb8d7eba546f0e5fe1c169d7. 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/JPV751901079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ddf3dc2e5e593c7c446c07ceb9ac6cfc4388e778e7670906b058289a296eac. 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/JPV751901081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa391190da655675391899512d5aa2f955bdc3ace1d1af267b6068c8a7a660a34. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:06:54Z), 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/JPV751800414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0494b22c94cf07b7a1d0a80f02f3f91928b48cad091361a6a8a0b8b6812622. 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/JPV751800420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1350f85cda4032052c3e47e62c76d3bb9fae1dd1634751569eef400bc3725b7c. 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/JPV751800422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc7313ea8f049088f09462940fd28a24111f96270d4a0f6e41d701e571977f. 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/JPV752307604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36493fe332a05feab635f6226bc7d39ce915409e8a077b44b9998f8df7dff38. 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/JPV752307433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4608af6792626663a9977958726590f4bc2e931d828675fdea526ab585f785f8. 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/FRX872344231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5ea07f385f82ba8ad70f6ee97787bef43a2db7a524fb2de527516898f606aa. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPV752206850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54868f2e488771db7a212a9c6c5176e07e0e0ab518122c999833e292e8f4ecb. 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/JPV752206618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95058bc3375fc0965572e711b56932a11f2eccd5f48845602ed30b7aa0eb18a1. 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/JPV752105099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3560726d3e01c7478ede15bde5ce5edb92cc4b77f8d829f229c376c31cf056d. 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/JPV752003956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd989f1b96558565aa9f6b8b0f19e3385709c39255bbe1f17b385e1c4269a92bd. 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/JPV752206929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734229a9bcad813ba407e3c4711bf4563921216982b828f875c0f4ba7163e39f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPV751901064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4206807cad2550efafa019f05f76c882ded76ccc3b9a20d71f4fb296fb8fd48. 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/JPV751901589.