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 0x6827113a48e0c1857c7b5da58da5536b5cf375b191dca14e967c0f007da5e254. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b6fce97-626b-4dc1-912f-fae3a0fa5bdf.json and https://artists.proofprofile.net/proofs/artist/2b6fce97-626b-4dc1-912f-fae3a0fa5bdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Julius Eastman Vol. 3: If You're So Smart, Why Aren't You Rich?
If You're So Smart, Why Aren't You Rich?
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 0xcf0565e050468b1228c5f757a41e30f16195d193d3d83e0e366bffe19a434737. 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/US7MN1901492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94e25f478ec7f8a93f7da0fdc363edd79f4b07b1f61f3eb7400bdfd93de30a7. 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/US7MN1901493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea312d538c5f8a9f01dc623c0f2efbe6f1872055858c7b05266437769aa786c7. 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/US7MN1901494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b151256406d98d48dcd31d166c2b585d0cf487eda25bc7cdcac2b682be292e1. 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/US7MN1901296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfa7b315020def9cca6b605f807197694c66301b93eaed6ca0b9c049d5689b1. 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/US7MN1901279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229e955598bccab43c5cdf8f2ab5be151880a300d2b78e89d71c72870ea6c6e1. 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/US7MN1901280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d74e317dab757affd83ee7194d2a76d6933d7ceab732e484f5b68ca52d9316e. 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/US7MN1901281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7385031448016162cbe6ff74427937d1d730a31cf6a5dd8d4dc89947bccdea. 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/US7MN1901282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6790e6ed508f14f49d9ee8a03cc45a218bb306fb380d022761107d2ec9ccf37a. 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/US7MN1901283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6298351a363c33c05c937f16983101c32d5af9dee28fc2009a846f9744d3ba0. 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/US7MN1901284.
Femenine: No. 8, Be Thou My Vision (Mao Melodies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095361b5bff91c6ff7b48d18a293558951450401679d4da46cd0a4e6e70b86cd. 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/US7MN1901285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d797deada92f4f4d9e06b34cc5d5fd6b39f222fe1e21e385120c9cfa66e596. 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/US7MN1901286.
Femenine: No. 10, Pianist Will Interrupt Must Return
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03833fc82778224ac5e5dded943a8261f6c9ff890e4a29535d32d5e5e20c848. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US7MN1901287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364d0556893fd4ce94aec1acfb1203c5d4476ab0224eb49ed36d709f41bb1596. 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/US7MN1901574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7a49c68ca4beaf25e374b7954f2a90eb392ddca25a68a44a73ad5ff88c3d1f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US7MN1901356.
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 0xb97bc3dc3d36b416ff2a7be36adc5e97805d12aa6f7b81b6b504f655bf510861. 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/US7MN1901357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2f1d6346541b101ff554dccb8af4b74b540e10ca8f7e64ab31cd2ae26c600d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US7MN1901360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d5d46e2df3874b71eb1d71358201a9d6b7689c611cfea8adb683d09eca2cdc. 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/US7MN1901361.