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 0xf1ba1ec21bb25e1f0cbe50c07d941d839f572b0e68a36444d1c7fe3b31aca015. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56455c83-af8e-451e-85cf-2af629fdd565.json and https://artists.proofprofile.net/proofs/artist/56455c83-af8e-451e-85cf-2af629fdd565.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 0x11138ec4a6637643b9ebe02117bd714d0fd5308560cc9c476527c331c2750d80. 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/GBE281200440.
The Bloom Series Vol 1 : Fundamental Frequencies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b018e155423ce6a4b670f078ee7eafbf6d1e3a1cf2551ed7029aed9b958b89. 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/USBEB1310033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c60277d532dcfd6fc581093e69b52722483cf924b4181fce366aa06e2a9772. 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/USBEB1310035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df22a398ff331ae875d8f4571086d0a0fe3f7cdfed505824a908f5d4fec8373. 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/USBEB1310036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea3a07c119c20ac026e91d4c1e8b6736ab04d42ec5ab1048efde96ca041d38f. 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/USBEB1310046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098fe742f976449c6c049c89e5f00d4cb1402d7e866797343c5721929ca83eeb. 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/USLZJ1672852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2878b9db579f590639f43db688cbb93c37d0bb484c3f49db781d6a227b6e5a7. 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/USLZJ1672867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cd435bc8a1e9354dea75bb42fad3f56815a4d5c5705398b3ac707303b0810a. 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/USLZJ1672855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd084227fed9e5ef0e65014251d70ae62264f134036a27456d6b9d9e690e022. 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/USLZJ1672853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e63967fa246c69628574c3d27cc6aadfc118822dadd1466ab30461261bde82. 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/USLZJ1672854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a6c865aa7256c3aafa2a9d97092e3d893cca89958423a3e19985781f11fb94. 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/USLZJ1672856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd59d654b6701ac01b80b27d5dc36c676477975ec46efa0ae846587cb055b1f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USLZJ1672857.
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 0xbeaf9c67b45321b98eb4ec8600418c4dcf851426f1340d5134e3e22bb760f05d. 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/US6R21380624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486988164931966c6fd619a7b26bb8d7d1799a8f0a48549d70df303c719f75d8. 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/US6R21380626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512559452333df0aa7017736e7ad701f033080932013aeb430ebd4db67b1ef47. 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/US6R21380627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3832ba9a64fc4e286b91bc513340437733e6d706a7c1b08f5d577040e7cb9e47. 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/US6R21380628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fa6fd6310641b5cb9ac56012f5425ce7e74bed355433fa3b509f43ed543eb4. 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/US6R21380631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6521945c8e27caddd962538537ef6d8653da878a671685770c82e21e147d7f1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US6R21380633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4c483af85686a2e6f2eafbdd1ed1d59f3be0f1d2472e5f9051068e38e6236. 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/US6R21380636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb476c50992b51effbab8c8b3eeba14ede13c0755e6cd4de77cf068e3e2ebcfb. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/US6R21380623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a45160a69695b613bf396d311f0d2961ca401d29928f6ecd99dbd838b3318b5. 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/CAM491510011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dceb3466e520cf784710f8766d9db88a886ed91e831703bc89497fc4fef3135. 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/SEYOK2403597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf683058f02edd3c229db8c12dce78e2b63de0416d1e3ace371888672eff9349c. 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/SEYOK2403602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee812cc93b4ac61538a9f60312bc999f397ae2930e5c9d49a724a14ea3146ee. 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/CABD21600408.