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 0x6f47419d8ac87e1f1a42fdfa901698b46c7fdf7fe6ec28c2e71442ae47287ac3. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a34f12c2-6ccd-4617-9102-e71eae932427.json and https://artists.proofprofile.net/proofs/artist/a34f12c2-6ccd-4617-9102-e71eae932427.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 0xe3695b6e55a5e52118d3540dffc756f8da02d41060e0e65363c0da87caf7a023. 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/USA2P2329769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba11ad0e7f23fb81847955b5ce4dc15c4606634226cb58adb1ec7e3f9cb9d38. 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/USCCW1611007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff101879ffb5219190d33bc56fc6ce062f4f01ca8ff718e6d970642b900c55f9. 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/DEAW12300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9d9e1c366e605d9f25a1f3b8d01cf3fd1e468b7fd25678943926ac92e81ceb. 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/QMJYS2100714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4233627fdf87394a95e30c78c7b21c04867234d3c83994ac5e07e46c7cdc964e. 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/USLZJ2309092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bad81ecb1acda5b456e1819e75fba4d4e88457f954b6c4e51b2fa68c7881b7. 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/GBUQH2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46500a546437821be6afe1366beaeb62954e7899991ec41fd57312dea038941a. 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/USA2P2044880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a852e8b62c50588d756145040537f39d4f72ae34782598c13b6d939ecf66fbf. 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/HKJ962201578.
Elusive Realities - Alternate Sundown Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceed9dfdb728c2a0aec8ceb5131ba084b40da43d372f3353c1c2a273183adea1. 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/DECY52200873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a7ddaf5ea344b06fe35a7051615a800fc9bd1ddaaa5682fe667c5c8f9c42a7. 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/GBKQU2354013.
Pora Sotunda - Finland & Aaskoven Bliss-Ful Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a2aaad1a59d97b5e706c696c0e28dc84822fcb7617bc7bd7be03af8a93510a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QMFMF2128714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2cd8f30835ac93a6ecc1e2a4d741455699386723c3570011f155a4e94a2f6c. 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/DEL021670048.
Midnight Meeting - Gui Boratto's "La Chapelle" Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006bf34d8429f3c3e928c81255cd3ebbd25aa7f6e5c960b0eaa33ef85477c38e. 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/DEU672201158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bca7993ea1db988bd20445ffa9ff02f41bb1098f4e045427299d44004fc80b3. 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/USGC62001135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95029c4af81e30e3204e23522caa1462662ddb4500c8dca347ca6fe5c8fd6ebc. 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/USGC62001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f27354a8c0eac80af3dd12a026a5675f2afc7538103d84dc93b588e49cc24e. 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/USGC62001120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bec9ea9a56a61db9c2421376309d0861be2849db05b03d1ee2cbf529fd9768. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USGC62001057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35d4e4fffc8524dc159ac73a8c75d36a68a005105c203bacbef2492b5470872. 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/USGC62001137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3cd92f05c28abebda313617a1d3bf790cc3d13a9c458242fc3ecab345af791. 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/USGC62001138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8ec305ac52accc7fd0a7d2cb4f3aeda5e0e1303ba311935b6d380246d79999. 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/USGC62001139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5de04930c2de10ead7203fb878dfdeb0ea224e9c09ad161c4e0039152924ea. 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/USGC62001143.
Bastard Jazz Presents: Hear No Evil, Vol. 4