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 0x0c39224b9eb49c23e61dfef073946e5fe4cae79ba231112154bb9b89e6bce7c0. 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/4e4380b1-1833-4d44-8e8b-7c2bd5a56b3a.json and https://artists.proofprofile.net/proofs/artist/4e4380b1-1833-4d44-8e8b-7c2bd5a56b3a.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 0x04650f3a7694ac563dcafc0afc5c9013d19370f22255af3a8793f4a1481ac98e. 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/QZFZ62440607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d8bd1519b642784fb07002e09d27b131846d6266f8da018f5f505c9cf05f2c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAEW2095939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61a3bd95e2b7fe3de913889bbb3c73a6826bab3070026b713981a466259d92f. 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/TCAEW2096018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff770a52d4aec3b58e6c02d2341c65336c73e77382510ef88c1bcef7987dc416. 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/QZHNC2420874.
Everything At Once (Live from James’ Living Room)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2498d7ff4e8a98fb33abab7e3880eb04fbc6a307144aeb9584974b23656332. 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/QM3DF2220412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407f546f19b6c0f54cc40c55cb6ee65b72e56afdbfecb07d9e39725744d5bc0c. 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/QZNWV2201530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b5b6358e0d4d10a52c9d482e7dc611fb650c84776ca6935a7a0ee3182a33cb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USANG2283214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cadfb3f79b7207df555d682dc54743f3c967cb1b5c28ee84de75118a2b2f3f. 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/QM3DF2220415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b5b6358e0d4d10a52c9d482e7dc611fb650c84776ca6935a7a0ee3182a33cb. 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/USANG2283214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58b27b8982c6afc04dde80d50e91c550df8a477096eaf537f1b9d1b6b5a9f72. 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/USANG2252080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5988a835020fd1230081500f15e47cbbaa1a767553c87edf40db5f7a47d0722. 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/USANG2219687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae97b3a27f9244bc0b377292dc5e1ad6705e3226f542ee976e4901adf880898. 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/QZMEP2288780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3c38672521fd3eef71ef2ba302839aba2159c0416850384771ce6ead09d52b. 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/QZHNA2251702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5035aa728f0ccafcca26a37230cdae26cb9d361c7f330a70a1336947a9ca6dc1. 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/QZFZ42253947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8190d32aecf7cfe22f00f9081a28b1f423143bbc7d3cc33a6347bf8516e1d229. 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/QZES82118990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7feee3d36f1b0c38070d10218caac64a27ff2bdff2341a13774f88f621f703b. 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/TCAFI2168643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf723ea2d5436d2198a7bfd7ba1a09af515d4d615cd38fd9699246fa3eaf62573. 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/TCAFG2047860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd1b03edc8bc3f33b34d240fbf9545f5eea94d4d98539ec04af110ce462b6cd. 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/QZK6L2061204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb0a65bcd21e2761cbc9b4133cab8c363bd8a5db3d6b887e8f3ad62b142be07. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAEZ2036622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f97f31ce632975f3b8bd7dfa1f6389f4d2addc495bdbad5744f4ccf544ec6d4. 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/TCAES2067042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a0d2b849c61d2a9add96ccee746994e81100a17e1fef97303026686831f848. 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/QZRP52598105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5117fd02d3cf49f0fa86908eea683eb91db66fdb018b02983de37da8fa6a0dd. 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/QZK6K2578823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963a531cf0781e5fa861b58138f657591c51e12df39581b0d7e459a3a292ac71. 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/QZMER2392485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dac3f74bb1da59c0cf805424544f01424410b0ed35744fee737e940d0522c7d. 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/QZTB32367976.