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 0x1ec119ff700db94186564210ecc96e064a9746c33e1d98e97fa2c3cf5b127a86. 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/0d4f666f-903f-4530-be36-835e368447b5.json and https://artists.proofprofile.net/proofs/artist/0d4f666f-903f-4530-be36-835e368447b5.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 0x279af73dd9fe54091c6b59c57203b3e92c31f77adecfe00cef5dada317b51003. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMBE21500705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf956b58d4ca6d8040b4e190d6f84a2b5963d99e2d92a00cb912791fcac479f94. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMBE21500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe596d6d2d101d17d518d4a93def8a602a1322ef3a2f3ccee3627fc64b6196201. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMBE21500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd635926558db82b5e3f0c1a3f5859ab4211c9a97314c1e86a07355f819e96024. 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/QMBE21500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf471741e440395e12a7a5ea148e4fb59540de8f7813323f29b4e81318d410a54. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:07:07Z), 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/QMBE21500709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af63791df44db00f2f8b430813e5943934ec8567fa53e38e106cb8ed35c7067. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMBE21500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa055440ebfbc9e6c42afa7b05880d718b20789d6fd8057ac01a9d9247132b3d3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QM4TW1772754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e1c7e088312ba0164666cb143fd358a7e1334eedf6c69a15d98cf5ce3aef8b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM4TW1772757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb388d0d59f866c46e52563f2e1943956eebbefd22813955901bc9110f21b9a59. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:13Z), 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/QM4TW1772759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8a72730e0db43330fd27936879f659d0747ed9a35869c13b44f0c504b0bcf3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4TW1772761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cab4ee1ce2f1354164a9bf7002aaf0bccede15a9a97668e2075b6bd9fa9c62. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM4TW1772763.
Dreaming in Sanskrit Verse Two Instrumentals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3a236372f810b7dd953ec6065beb5153ae75d015d2ad7025f59e3504fb57be. 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/QZHZ62250390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bad2bd84c3889311fb73f3822354996095f96e89f5435df69cee5bc85403f61. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:03:14Z), 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/US25X2204004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edf41f7c9f4e1c107c0f7d81fdf4ff36a25e0c109bee8ffcb85fa7f3a2110a5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM4TX2394674.
Happy Birthday (Soul, Hip Hop, Jazz and Reggae Inspirations)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f18cf88b3a1034e94a8cb3b110c32506485f618dcf3adcdf16eb021ba7fede. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM4TX2404090.
It's Peaceful - Good Crush Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddb843dd6bf1e90713203364a65a05affacf10f8d582c3981decbd0bd970f67. 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/QM7282589621.
Chill Yoga Music 2: Power Asanas Dub & Reggae Beats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390270527a1a7d0b3d21f1739203d07e6dfd0479806d1bdf96f6a1a0cd2ac9dc. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USWS41918603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3a236372f810b7dd953ec6065beb5153ae75d015d2ad7025f59e3504fb57be. 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/QZHZ62250390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9241a2f11ef9089a91fc051ee111bce28bcba44ca3f0d069bad931f2af4cd3d5. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QMBE21500710.
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