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 0x6aaec79427c55cdc666fea694a38afe00582786a1fa73f25e501fac5ef65da6d. 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/745aa52d-860f-4eb2-9432-96db45d8636b.json and https://artists.proofprofile.net/proofs/artist/745aa52d-860f-4eb2-9432-96db45d8636b.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 0x580b55fe235297fbe8e5f3b74f698decacebff55fd76a5c1abc2534a9d8244ff. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIFMF6200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72201c86286d8072eda2855437a29f6cd0ad3d310f41862dc3b045eb9c6785b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIFSC5701100.
Joulupukki matkaan jo käy - Santa Claus Is Coming to Town
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997f124561da9c7f53fd1b5b4e59dfcfc244b3a981dc7a0fa5efde0b465bc20d. 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/FIFSC5900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03891fb1f58808e19c5057e7ed13168745e27f7f4c2166728aac067e984438f9. 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/FIFSC5900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86138e2fe1b9548ff712e394e5962b9f5c0a12c638a4402299b9c881b2f46db5. 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/FIFSC6103300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d3ee99013a9a0a0e01d4f9523d792a016ff6f0454e67d05668a417c6e62aee. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FIFSC6400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ff01e54f898f63640749d65bdce7fd12071496b266d11e9766ec102e08418. 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/FIFMF6100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb99c65394245a012cda7ca6b34db4f78b0044d1a7180c5a789223c31422d7d. 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/FIFMF6100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0baff91e767fb1e721e49784b2b28ecaf8b62e4e5c14d30d8a793b1700ee8ba. 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/FIFSC5700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78ab91ebd10bca3723855302f5fe4f3906cdba4009cb477c3cd2d518a98f9d. 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/FIFMF7500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279acf2493576e0b113d8d2007f6f7dab40e765b5410933bfd1a69612c54c821. 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/FIFSC5900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03891fb1f58808e19c5057e7ed13168745e27f7f4c2166728aac067e984438f9. 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/FIFSC5900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997f124561da9c7f53fd1b5b4e59dfcfc244b3a981dc7a0fa5efde0b465bc20d. 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/FIFSC5900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c45f68c2545b2b2276dd594d5331ba91070dd57b50e020bbaa16cd310c022b. 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/FIFMF1227023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0574e5b76a8ac6d42909782db02ae896859245aa033458dc94d65e661eb7fcf. 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/FIFMF1227024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf728fb9dcdc2486c80b398e7f0dca996f4ba5c50e7d3ffea0736faa1879bf5. 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/FIFMF1227025.
Rakkaimmat Wanhanajan Joululaulut, Vol. 2
Tonttuparaati (Heinzelmännchens Wachtparade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b229b3b9bc017f83dbac630f089fbb628a708b996011b8bd6ff23bb136a905. 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/FIT3H2000196.