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 0x91d72e33b280580d3b3e9d8f0f395c9da9887bdd9467374c051989cd54c7df5e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44c8f117-9536-4b53-bb0a-ecb19d18f175.json and https://artists.proofprofile.net/proofs/artist/44c8f117-9536-4b53-bb0a-ecb19d18f175.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 0xcccb60d500224235f32d86543aaa4b5ab9d5f844826652d9e585a3dac1620596. 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/USUG11902355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2362e2cf1820fcd9c820a8daa415c268deb103ed1721ba6f79c646ccb03a75e7. 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/USUG11902359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e757a6c283ebc61a2557e792d59fcc6493cb8d1fc237c7f68eddaae295e00e6. 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/USUG11902354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccb60d500224235f32d86543aaa4b5ab9d5f844826652d9e585a3dac1620596. 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/USUG11902355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6806540efc1315651321daf0590dc52102587df3821b4f0272c33b4b137067c3. 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/USUG11902356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf894b9e6ab6fa3285fb59b5bb1a5cdfdf756d3b8802c9b9642d4cda263585f45. 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/USUG11902357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800368a88f8143e2b80eb41643e5b7a6007c468795dcf052faccdcf332937bf3. 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/USUG11902358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497a69457fabb710f203f04b470b616be5ed8b8cf9371acaa975ec6cc7806cbb. 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/USUG11902366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b91b80c3722a83a68bd214a8e59d32a77bb56ab6552a02f180d76e26b82949. 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/USUG11902361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb8a303a9bbda4679ccebed9031dad63c2f2ad26f1baebb2737fc924b43556e. 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/USUG11902360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2362e2cf1820fcd9c820a8daa415c268deb103ed1721ba6f79c646ccb03a75e7. 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/USUG11902359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa42861a3985814d155b86bb1e896eff7e8b0b2cfd265d179500bbfe00cfa45. 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/USUG11902362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118221ed8a4f468f5242c4e38ec9852dba963f70ecce0195988dfc1af76dc610. 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/USUG11902363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8609637c604c157978bfe8a860523465a9e74449293c7c44e17f2ebc13688f9b. 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/USUG11902364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a0ec11139b89a606e728fa5fb3385879607525761ab92fa7825356f6b82c9e. 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/USUG11902365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3b75eb32ab934448f49939b21c8e67532c99d8bd9dbb2972df9db1e783ee7f. 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/USUG12004098.
I Want A Hippopotamus For Christmas - Bonus Track
A Jolly Irish Christmas (Vol. 2) [Deluxe]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3b75eb32ab934448f49939b21c8e67532c99d8bd9dbb2972df9db1e783ee7f. 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/USUG12004098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118221ed8a4f468f5242c4e38ec9852dba963f70ecce0195988dfc1af76dc610. 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/USUG11902363.