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 0xe6946254789e7ccc3b66d242a4fc3d40f764b0109d714ab66455f6a7e9b37af3. 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/6f30c5a7-74bb-4347-8764-473440d91678.json and https://artists.proofprofile.net/proofs/artist/6f30c5a7-74bb-4347-8764-473440d91678.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 0xef3be68270842323274a00cbf5772a4538731eb0083781290f1aacfa5e0e42d3. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/NLD682000522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ea00da5d70ef969a9124f24f55c52efbe5ab927dab2046780e639123a1431c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NLD682002265.
Songspire Annunciation Vol. 5 (Mixed by Jackarta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dbc5519b6ac62955663bc12e0cb53037ba520e495b66e6594119e770551b87. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLD682002702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9317915396395cdfe8feb55db8cae9133a6224442ca0d5f6e8a141aa48a31a8c. 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/NLHR22200943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b1b5c47769653890c24232699b32648e0c42b2ac659c24458fac1eae4d37b2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:36:29Z), 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/NLHR22300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d5ddb8d55cc60567849d526c34d282b2491f89e106364652c70ce9b5ce6934. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLD682400753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f81e322defb585082229d789df732612ed2a787e8e01e20ec7d328356eddc1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLD682400754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18ea4c8d1ab144f6245490e11b1aed1c959fde388ab1bd55c82c7289fbb6a6f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/NLD682400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01336e3169e287678a60f287bf4d0a3fc78f950550e979db780b405929a85d73. 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/NLD682400756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd9a12505a0aa4b4bcb71a08331a5dfcefbe29c9829b125df66b4b05fcc6b06. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/NLD682400757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0030041566757ab8a3e35726c9cc9660b579a1bc861afc6ed57a4e8162833b3. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLD682400759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e60b3be670f62fc556260db47584aa94d60ca54e6ed3ec6af4dd3b8950895ea. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLD682400760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ca9763b9704fe06c7fe7d359e3531475c9c078742fdef80fb4c55bee07c779. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:45:39Z), 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/NLD682400762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa65340d11c5859ec684a7b75c2e4c950bdab76ef1f8d93a2507a54f6d84aa1. 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/NLD682400763.
Colorscapes Volume Three - Mixed by PRAANA, Matt Fax & Dezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dedf9c55d9c28fb8d77920e94f74ab204e41fa9a57bfc2f7aab23b46236370. 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/GBKQU2194002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94babcf05b61e0e7e3313b76e49cb049040ed7b284adfff652a94ec526a86f62. 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/GBKQU2095314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796db8b038b091d03615a0cfa944f7575295847953e3539392acfa84bb38d866. 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/GBLV62019060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4273007f661fabcd25df995aee29fea950e06ec7eca0f9aeeba06c09f98b45. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/US83Z2206982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b82e14febe4f439b90a0e28ab1819ebea9960009982242e740a86647816d5d5. 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/GBLV62215708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41551fea13ccf135a33079c630cecdc24f445b434e3044ad712cd8ee4cb2aa98. 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/GBKQU2134813.
Songspire in Ibiza 2024 (Mixed by Robilardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986558f89228f313d38c3d1e9387fdb91c7acdb8844ffce7b1ed2d32ded87dd5. 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/NLD682401953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab15a3f8ef36670335fbeede5453608c85f4396f54ee2b419b6051e845f2aaa2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBKQU2192081.
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 0xd1cc09765caf71b8dd4c0e92ec95603571aeff266d597dc379bd6ccef989b2a1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLV62019059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ff543c9c3ceec4fbae16c4cb5c14be901e08f0bc4cf55d6f6e5be904d1f305. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US83Z2206983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fccf279b67aa37ff05148ae8a161040cc95778651a6df3dde9f506b5d38616. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CA6D22100737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4234e76b515e6fe033b67228891670a427cf3495e8d916c7d408fe64a660aa28. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA6D22100740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f9f95e351824e625fd6b6a1f972a2ed8ced92abc5e1549208f3a1b160a9ee0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBKQU2134814.