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 0x3abe659455f1e3c9028333ffc737209655244d86beb46fb2a4d408f0187490cb. 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/d25e9259-0022-4ef9-9a7f-d44ee7c2698b.json and https://artists.proofprofile.net/proofs/artist/d25e9259-0022-4ef9-9a7f-d44ee7c2698b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Are Greater in Your Absence Then You Are in Your Presence.
Intellectual Properties Vol 5 Looped Edition
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 0xdd009353776894b2ce2df5af3bca7b7dee9a9328b6b463428621bae185491b53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFK2311758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fa86fd4410865651cc18e54606b2e815e263034941cf1952e6549762a3e2c0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFK2311759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a5e4869c590193a2f461519fe52a69ac5018193043e07e45eb4e8b4127419d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFK2311760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868d13e3a649347f4c5b0fc62f8fc05293267b817ad40c22d5b3b326ec2eec07. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFK2311761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a6cc81839e5260401178f6089ff27d91d349f3e62de5315b7a74a8f26157b0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFK2311762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b1d96e3b4d5985d7a2c0a12b0a09832923d6c936ef9cef3860c4b70ae33e51. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZWFK2311764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc66aa170f966909ccf9a6746dd140d919f26d36b3552f88fc5fae3bb4eb2b4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFK2311766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7152cae06e08743bdb6d734be0ff321789b79d1c6f78115fcbdb4fc9e2661ab. 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/QZWFK2311767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe529733f64da7c25d2705ae7d1e367c2617cc4de5db4d9a90d117263b3201936. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZWFN2487664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b99b81d4eafebddab647e68b9e72af029d95833962a3df0cba0206136d5e36e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZWFN2487665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b90b394ad6b6f497c1ab049602f2a28e48a5f10170f7d148134054855f71c80. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZWFN2487667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8f8228ca9f28d508a01cb291fe8bef68118b20273f10c0b3b76bdcc0170206. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZWFN2487670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea781d00be8e43e11e0a2723d99d7db5d99db8a48cf97dd84cc3d159bc926d9. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/QT3EZ2467563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57bd58c59d205e0159acf26a89ac9fd608186c0e404258de3ac87daffa4bc58. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QT3EZ2467564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b9c2ef1bd818a32b515d8dc80231b26f70e66bc73e29663570b51009bf95de. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QT3EZ2467568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1e7c9d5e3d6df29f54e7278db55ea9490e3ec93ef2ab73ef1854f89d61f877. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYZ2585259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7452560cb4f57de8ecba08c9096d68bd7d97e96d379cc2688121cbe1d418dc18. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZFYZ2585263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19df28138a2f35485cbc45780762967d45c9add769fa16c9b99a838d1adc289b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYZ2585267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6a963672d765755cecfd75c6f01e7c7138978ed356d829bf78f2d5a813a917. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZFYZ2539481.