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 0x31ad108f8544375240194cadf3e5418ad89db94e3a117bf16c4d130a36704328. 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/860e0978-4526-4640-8119-5814256f2ea5.json and https://artists.proofprofile.net/proofs/artist/860e0978-4526-4640-8119-5814256f2ea5.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 0x401bb9c78b3692680e8606e515f4c74124e111ed3b6c84d108b9bbdd5073ddfc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US83Z2424037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa642eb9df3909713dbe34b6e4bb14c8ff356937fec2284d4030104b176b491. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US83Z2503238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28ba8d076cf6ba41d0e21839a3b455ed177304ad97eb34a5b542fa0a6531ab3. 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/US83Z2428695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffc970b05461d200330b7276b96313f13e22669a930cbc516f604d0908a97c3. 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/US83Z2428694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd1ac3d603d3dd457512129695b3f152781e43f778d8f7911ca7190ef4465de. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:32:19Z), 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/US83Z2428696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e75cbf690f1c0326afe034940fa045ec7412d897f1c72ab189f7d16c5c38d31. 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/US83Z2506799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea561b01f13997c88adede2639ae5919214658148ea698f939a5625d3522d6a7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US83Z2506001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfb90b3f509afa68734999bd817bd5ef214ed73ff60622ae93a20d2db57750b. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/US83Z2506739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd660a8fd7dd820dd180af9967d015dd16db5919c6ba83953ff242e95dbb15294. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US83Z2506741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffcded747bc5c3d7c3ad03d3d534a8394a0bcf851459ea3a0bc5f83df5f543e. 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/US83Z2506740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5087ceccc5e627b313540a3a1bde52ee78b6c785166e24abfcaeb73cb9b39e2c. 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/US83Z2520164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6c7fbe01a53ad3ca03ea3367ae40ddc0cac9d552af795a6b4ba04bbbfe19c9. 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/US83Z2520165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007cfc38f1e8b018d3f214d58247247593c4dc2794a5a71bbe5a6bdf9cfd715a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:24:39Z), 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/US83Z2532782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15978a0b37445259c2c9a4dc98bb5ddf9a8c06d411d4be3909b4034b5a33a9d. 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/US83Z2536636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea561b01f13997c88adede2639ae5919214658148ea698f939a5625d3522d6a7. 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/US83Z2506001.
FSOE 875 - Future Sound Of Egypt Episode 875
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7afe38be7e2136380331320237234f36ea3f1ba5b10ce491f25ca4d7b12bceb. 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/UKRMQ2401133.
FSOE 873 - Future Sound Of Egypt Episode 873
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47150fe398ba238af693b5919fadfeeaca320819a0b0d2a3004eec6759e80ded. 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/UKRMQ2401069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6c7fbe01a53ad3ca03ea3367ae40ddc0cac9d552af795a6b4ba04bbbfe19c9. 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/US83Z2520165.
FSOE 912 - Future Sound Of Egypt Episode 912
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa737d5a250eb5957a8ee841dd8f5e20e3e90b3d34078efb03e00eb6025818230. 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/UKRMQ2500606.
FSOE 911 - Future Sound Of Egypt Episode 911
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1068fdb6c6ae45408445d6eaa7204456e9fddfb8a2a93c02f840804b3ef7e1ca. 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/UKRMQ2500575.