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 0x265959d56fc6fd448e846a6a6b8100434328241549c569c4033e739e31fc9fd9. 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/6b7eb7c1-452e-4d08-b415-454a30bfb5d8.json and https://artists.proofprofile.net/proofs/artist/6b7eb7c1-452e-4d08-b415-454a30bfb5d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sir Jimmy Shand Plays Old Tyme Classics - Volume 2
Sir Jimmy Shand Plays Old Tyme Classics - Volume 1
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 0x2eb68b8059797e9b5cdbceb09cb9be65e718d91ad29b162bf5970d8ceb8a3d4f. 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/GBMJG1103191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd63f1cdd1b30c78b8b29b3984abd982ab6d06715b6f11d513f11f35c52e90a. 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/GBMJG1103192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0928264152af67a5ccbffd6c3c34a37cb40e6bea14faa07087bbce5e41edb04f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBMJG1103204.
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
Sir Jimmy Shand Plays His Favourite Hymns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f7d79e19565ec05a721438624ecb5ea7f5d2c9268a2c2f38662d804886dc30. 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/GBBLG1500396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f81b9c4dd7439f6945ed229a6a27bbfe3ba2d339344f864933f4dc1fdf755e. 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/GBBLG1500397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4272df3582ce4f7aaa9a05939d6a5264ad04f0db659dea67f39cb53526d73cee. 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/GBBLG1500398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5a0d230b859dd312be45e5f5948bbe5508af8cae86b649d36a639e236781e3. 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/GBBLG1500399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed54fd64eb51b6a3d57cd8eafe3177821ed091bafab2f75e13f165ae0ac00929. 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/GBBLG1500401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441bbf09ca8c467914b0435b7ce21601c29010bf3651cfd9c5804f063cce4361. 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/GBBLG1500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308a63929c6dc49e1748b4a68ea92bb99b3dda91b810c9026a7238ff7800fe6e. 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/GBBLG1500406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde04a86b4fa17d27fe0ba23f547804223e7ea96c9a69a1c389f196414ac1ece8. 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/GBBLG1500407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce124e941dc5f2ed0dca2b01451a914cec46d72a23f4de4ea76d76b54928cb9. 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/GBBLG1500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cef29dbe591d6cf3de8be3fb2153f2552b51a3e26989777ad675353f7ad7fa. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBBLG1500415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c51f036133fe80ad13910c38374d90038c7deae98d959fd631ffadaaccc304. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBABT9201808.
Massed Bands and Pipes and Drums of the Army Regiments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78804cd4e56acb6857b941af14292360029bf7581783e2eb521a629e6da273d. 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/GBABT9701810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b157d6c87f7efa4aaa75a0d18e7612a0a09f41a1c0f169bcc5dbc525e272e58. 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/GBABT8800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b0780a48aa04d39398061bf5e7c1bd5f6378656d50bef7923418ae34161449. 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/GBABT0300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd304f1f2018a0fb296a40d356436d8b788ac0d97f503fcd88c9a9e2c2edec91. 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/GBABT9500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32a9ff74759965212e837319017d806d453d3c9875c717bdc511991c3e0f74d. 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/GBABT9400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220931fff7bd903e3f6f421f5c04dac95c17291d6685bb874bb4ac0fc0799167. 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/GBABT9600032.
Great Scottish Songs To Celebrate Burns Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1859e8bbd70cd98620cee7c06a323770c44c45e7780073ee8fcae273ae16dc4f. 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/GBABT9400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32a9ff74759965212e837319017d806d453d3c9875c717bdc511991c3e0f74d. 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/GBABT9400137.