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 0x7436e8d2a61916e8caf5ce543a03f20e779d5766625e2bdb807f2f334c553199. 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/9455b501-6518-455c-9db5-fc47b6ad6fb0.json and https://artists.proofprofile.net/proofs/artist/9455b501-6518-455c-9db5-fc47b6ad6fb0.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 0x8f5faaf819b1cf17b147283f67edffe758ae4e15ea49b98357a0b67c5a94baa0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZDA61806276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057c4bd6330fce9d608de047658895835fecaa276a16458971031c1a46eacb0c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZDA61806277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6777ab29a849d3e5f9a346765c9ed34a6e1f12125c07c0701ef973238677a98. 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/QZDA61806279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908dfc1844f707a5a79d962831309899d9a404a6617e2d4ea68e621f7e4aeef5. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZDA61806282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4031ac8fdbe1b40336d5a4647b808bdbdf51d31aa0d233b8a50218f3f04d769c. 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/QZ8LD1993815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578e3e233b8a9c6dab1b1d5c6428abe074ad2f87f1aac7f4968069b657da2fa. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZES71944127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6045e72f3eca8cd1557ad23cdbabf64b93d94b8814db1e9c56396424f5bb62. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZFYX1946808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042566d978348b39d73f6db86c5ba057b490cad59bea18ff6ed07f4e826dc2b2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYX1946810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71001d367d51c00b54fd5d178ea668869484bf6e513b0e403df27e73dc659a02. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZFYX1946811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1652d71c865ba8e8ede5ba0d83477cfd24bc2718b418bd7cd48c00005e5bf8a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZFZ61962891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8449b3a9c9e1e232d23f80a4fff15c58b3d6d7af798804b29ae1caed436b3eb. 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/QZFZ61962893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4908ded6b8fadd38f8e4bfeea178f6569e6c169332f3a43bfad54c52a4d898e8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFZ61962896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6580d6218f5ebbca297093042b749baae180e4aa9a91958a7f18ee53d84a53d5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6N1994375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd5e1806382abef27a0c86235050408c105f66df1b3560ac77e2f3984e4710b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZK6N1994376.
The Flames That Follow Us Trailer Theme (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3130fc7233083bdc86f1e6478eff73bb30205b9ca639642b7d0ca359f7d822a3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6G2085902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd134e45c801f3657bddb34c96ca02cc1bdae9e09c5d229e326055dbf19690d51. 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/QZMEQ2078313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1444b91b5f35dbb9e7bad9e2ed3ffcd3c92551e4a2a8ff02b4a305561db6a854. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZFYZ2159780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742350e79176c53fbd7785e46397108a0b29a3c0189519c73bdb6200add1af9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFZ52129562.
Axis Mundi Theme (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c22b81d4d44f8d0a0955602935d98e88fa164b9081a492ddca2890061d378f3. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZMEM2199247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb70f440d56b1880271f26ac800aa4051ed3489a505d4a65bc516f201def2a9e. 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/QZMEQ2126540.
The First Falling Snowflakes Of A Winter Long Gone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfd2aad8e034ec2ee036cc5b658001af3d7de736ee34153abae5c2409aa5516. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZES82245565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfd2aad8e034ec2ee036cc5b658001af3d7de736ee34153abae5c2409aa5516. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZES82245565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaed5ebb86e27d8e68c501528da9356145950e4fcdb9c5ac635add799fdf3524. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZMEP2316846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d2efb184ea6fd95d7fcc3b09783c7e4cb35ab6ba86f5eb601b0280bd71dc3c. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZNWT2566557.