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 0x66bce736eaea85f4082d47060a3f5f58bfd9b7733f127b4b8568a9a81a968088. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e477c29c-e3de-476b-a9fc-82e89458eaab.json and https://artists.proofprofile.net/proofs/artist/e477c29c-e3de-476b-a9fc-82e89458eaab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shadow of the Tomb Raider (Original Soundtrack)
The Witcher: Nightmare of the Wolf (Music from the Netflix Anime Film)
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 0xd023399392de37b527866f83499cb66623499aec66375f77a5a31a21be40e741. 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/QZ8BZ2100483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc637fb5aa5d8b5de78d604418c83f633da284f2df463f9db52454a8774c3eb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ8BZ2100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea9b84843f1d11a61a14ba2cad5e64cbe2dfe2b365004ad1ff886c900d0e417. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ8BZ2100486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce61dd45384346f824a875f33dcd96a2ea45a94796d703387f38d58b9eea866. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ8BZ2100488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d2f00cfe1f28e3f86a9a1b59e1e9d9c90efdab49bd20421f9fb94f868bd77e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ8BZ2100490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a875584c761c22689938cf5bb4f6cb80e7ad176b4ea83768a63924b71589c3. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:22:02Z), 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/QZ8BZ2100491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cfa548d9ccf63bec78d5c7e9bddbf4db68617e6b411c8a04fb2b6839f60ee5. 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/QZ8BZ2100492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3becc9188d2468bb496280eb5808897a7e6127ef56f53aed7b68d5f82b632cf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:25:13Z), 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/QZ8BZ2100493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf043642756e84870d492d3b86cd53fd1bab3b7caf2a56073c939b28ff74cc6d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ8BZ2100494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330e72a3601782e5bce734e3f28f790c4c5ad27f602eb1d3157f4f5dab24d2ce. 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/QZ8BZ2100495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f837b20f081b4cff33daed41f0e3c58ef2fe8291c2663c865064a8f456429e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZ8BZ2100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce793c495fc3c5a659613fcd48ca46546605caec9d2b674ccb37fb25bc326964. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ8BZ2100497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa823b4453c7786c929f933ff32c0d901b7e8810524097d99cc9b4086a8aa18da. 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/QZ8BZ2100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1bf13c4fcb3b273bf1a74a3aefdf91565f58f90cafbd33063625b15afc8759. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZ8BZ2100500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad4a7ef52e1e35a65cad64170638bb5f5ae006b17100da15190eab1a2b3938f. 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/QZ8BZ2100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d376be0b7e27c64332a457afc2f9193d5747a3c0975d731c19cddd4fb2c26a4. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:19:14Z), 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/QZ8BZ2100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9da214cf6895437f6e30100bd0b393183bbc9cbca912bd50e27604e3f735d0. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:05:11Z), 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/QZ8BZ2100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1c52face684e133c82673d16460df2314c300967521fe065ba39d4e129542b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ8BZ2100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b462326a55605b247eb13e5adaea403ae94bd736b44b78b5712e91a94309df4. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:10:35Z), 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/QZ8BZ2100505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d047e6f75e199220612f3aa5d628c7e5cdf44ed51a91ca16b3a8936741d8342. 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/QZ8BZ2100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed436d01517d55ef9e809268c4d258a74e5378dc17c3997b2dc8e01c450a8be0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:14:39Z), 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/QZ8BZ2100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabc812815900f58fc9640a209dbc51a06dda774001f08ed5b2cea059119bb58. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ8BZ2100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0b44d4cd6fc710245944d1483c674ccc79a1198319305a4f8fa75f75be26e0. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:02:34Z), 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/QZ8BZ2100509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1b30f1671e7ffb14531ea9cca7c2fb56c97e58b7c4a943135b6cc46103c7d4. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:58Z), 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/QZ8BZ2100510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf23c94f352cfefe0f17a02634d9da91297a02a5ab017faaec48139fb4c25b5. 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/QZ8BZ2100511.
RESIDENT EVIL VILLAGE ORIGINAL SOUNDTRACK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3310398da0d930bf02e613151f3bb6112667cdfcb3d133d17e2ad786d4db52. 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/JPE102101250.
Sackboy: A Big Adventure (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695d2aeee45858fa651ce9655f11c3d6d70f5faa7e549a7810ae3eb81622a9f5. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USQX92005441.
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 0x2c49e3367b09848afc770a20f702337bfd155c4f7317fd8aef8721b67ca0888c. 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/USQX92005442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77af06512a742aed6f54226bf89e835c992441ed7833ee21a018bd19e2b46586. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USQX92005443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedefd8a3750bdc71e83aa9693c943b38ba7fb4bb0a5aed6b5532d8c0f71852eb. 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/USQX92005445.