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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d21678a6b0cddb0081fc9b46c660be3bca9ac983dba4879e2881ed39b18bdd. 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/5dd54e66-5422-4da2-a8aa-98420ddffb5b.json and https://artists.proofprofile.net/proofs/artist/5dd54e66-5422-4da2-a8aa-98420ddffb5b.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf19179a972c5ef7984cdfafbc10a380a4b54ffbe00fb28160ef3df31504a1b5. 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/FR59R1875988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7e8d1d7d26aa7e0f7dee693e6670e674241d2b1027ecc0e57d128a9aa1ed12. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/FR59R1875990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8477d5ef8f5a6d4a01bf9ce97ad3e22ff17ac966341f6b796b4d8ce15ad20d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/GRMPA1610007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d71f2f941925fb0c78c7a48c092b39420ec34193fb7755ef00b6c8617164c0. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GRMPA1610008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c4ecff5fc227173ddeb495017096835b2f1a3d7b5302eb2da54e71291e1ac7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR59R1876197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4459a276fcf2e19ddc90723a08ef013702cfdd2889df1c3a3eebca629a50ad. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/FR59R1876201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53636b8e5f8eecbb613aabba8ebbbdf6613a25a9328810f14e34a1a278af68c8. 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/FR59R1876202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc85a53e4b00cbeb4fc503d170e4ab3c096e5bc7a5a3345bac7ea8bbd9d46e94. 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/FR59R1875984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cb11b97e1e59ba7d395aface9bfc56ef9b2ac330433db82c429f6b509e5f1d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GRHV12100105.
Egine I Apolia Synithia Mas (Kapote Imoun At 9.84 Radio)
Egine I Apolia Synithia Mas - Kapote Imoun At 9.84 Radio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e617f4bbdac23922ffb1d1144b514c00ccec38b15e49bb99ed861dcc2309ef8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GRMPA2200003.
O Kipouros (Kapote Imoun At Skrow Theater)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21a2075980600d3ec7102bf102dce29758e96a0f706ec2778ef9e8262fcfa14. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GRMPA2200002.
Thelo Na Eimai I Mousiki (Kapote Imoun At 6 D.O.G.S)
Thelo Na Eimai I Mousiki - Kapote Imoun At 6 D.O.G.S
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798a0012bcfe7e925384fb3e5f284df5c4850daee33552db06c5538e959811ae. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GRMPA2200004.
Taxidi Sti Gi (Kapote Imoun At 9.84 Radio)
Taxidi Sti Gi - Kapote Imoun At 9.84 Radio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773920639ff0bf4089f6e9fcfe0b490771b20c8d259231ac23e7268686695d1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GRMPA2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58ecbf3e9aa21005938c6f8b0eca3770c95285e601c312a705281ad076203b9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GRMPA2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472ebd51b6dcf20d0f21b7eca11957605dd9021f6ac438d5f7be95e89e8dbba2. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/GRMPA2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b5f8e77e6becd988d0292324a15e5a7f9bca88e323d38d9dae825499850343. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GRMPA2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf68d950829e30d437f652f4b40ffbd3203531e0da545ce8a550b9ad4cb99022. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/GRMPA2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afe16f0212e61775ba3d2453aeb0b40846b673e9144358e7e401a8a8e2b9edd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GRMPA2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aaaee8107ae622893f14cbdec31a72a8e4435297623ece0e15ba8bb12c674c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GRGEN2424012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbd183941c5755eae33b4c5b2fcf4730c7cb5645e8aa18e59ddf1aeee9e572e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GRMPA2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb065736bedbed8083815aa2415f990ad8c2ec633e552d6ae7760d5b807c875. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GRMPA2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa1e522c65d45d48aa851ac0249e581b8f49b8095ad5aa51e7be5e0556075f9. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GRMPA2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a637f3f8290be1e178ae53060caa63d4729935866ebb57cc07844918fc2f40. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/GRMPA2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa7e1231baf90f92b2f91466760c0f0d3f98931c2fe85b7a160ffc03b9ec7a8. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GRMPA2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a21c8671269ee56ebced7d8f3fe1f1632bca34a52ee81c378f8973fc0373a01. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GRMPA2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ddba285f7d7d312fe62d6c83f9f6a1bcbe35aaca312b60d3c973eb48e6d009. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GRMPA2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f39600975db68090c61346c6fcd6b34060d91cb673aec06e682428881c402bf. 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/DGA062494643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cabc94d789798c2e9c0aa3fae2e35acfb8f177ce044573aeec319927d43445. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DGA0M2469485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0492dc72f087e24f2683a4a250f873a835dd62ea238719d0d614c9d09ff07e38. 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/GRSTY2501135.
Paidiki Efiviki Horodia Tou Odeiou Nicopolis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404f6d87f2c52cf9c8bbd1d3db3b51312d877acaa889be3c5b6fa6a205bd379a. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GRPA11900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36d7b19967d9de2d14d617a3b15bf8a9335b9e24ca2e7b05edcb047bda202e9. 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/GRCDC2300022.