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 0x642ccf41d43737f509d0c11998cd35fefda58ac05d4996a31e1e21c6b560f2fa. Chain 2 (Bitcoin): anchored in block 953706 (2026-06-14T23:14:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c4c9c04-1fd6-4c79-ac4a-8c599df8c726.json and https://artists.proofprofile.net/proofs/artist/7c4c9c04-1fd6-4c79-ac4a-8c599df8c726.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 0x48e0ab837bd7096940a504b079180faa2c69723fd4f274598b2b47b2b38dbbfb. 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/TCAFN2114634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3445271a81fd19c58e1a0bd0726dfbc3970da64624e9a6224638067de9d82be3. 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/TCAFN2115208.
Ain't No Mountain High Enough - Epic Trailer Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12f68906d8b022c76d507afc30818d2a01df5afb61a15d5b345cbe087c0927. 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/TCAEA1965171.
Ain't No Mountain High Enough - Epic Stripped Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7746b9ce8433e78c3fa88eef4ff84da97d61d30aee39db720c12564d3857e16c. 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/TCAEA1965172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa9ae3449a89dfdbc5dd01f83c96af78ea36c67ac12807e162ee2d9048d9e01. 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/TCAEA1965181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8449fe1cb8a1d8139619ab5bb7afd4edd2a21e7938e8b043695fe56fdf3a062a. 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/TCAEA1965204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a54b6409be16200d7c231ec0bfa8e8981ddc10d2237a2e833b766380239fa0. 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/TCAEA1965206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04acda7eca30360009c12050346f923fa9e25f7d6e73fad97b0a75e65e762b4a. 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/TCADG1737259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4a05c71f8cb29b249eecc59e551a9f65eb34c9f9c7501728ba54c6b9aa5d40. 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/TCADG1737314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cf9cbd895bb0d97c0f53de520bc6dfb6fda054cdad1f6a5a1b17f9afc6559a. 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/TCACZ1717453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36f6d8512f5f35a77a6003b6491f91b6625b98b5c2f62c5866640018d74a2c4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCAFN2114768.
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 0xd5a2d96b0ea23ef15a8d4db5c3a13f6c3453d9f4701564d9044ce13ad63ee7e1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCAFN2114653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b900652c33db26b2226ade19fd0f7948bf20ba910ac252450402ff450942000. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCAFN2114673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae30391eb7dce13fab29a9f027d516c32a0d1bd0532c6be16144ebc63c28fcf. 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/TCAFN2115229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c8366c32f83fe0f52daa308d74e71410fef6bd794692115aff9b7193e10ee5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCAEA1965182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05beb9f579c3f173f8422c48a4ec6b5d2e594a04b59bac4ffbe6c188c34d1c0. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/TCADG1737306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9b172942be1d2d438759c1829eaf8a4625f7f2560efcaa6d0c4a8063778c97. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCACZ1717525.