Roque ( ) is an American variant of croquet played on a hard, smooth surface. Popular in the first quarter of the 20th century and billed "the Game of the Century" by its enthusiasts, it was an Olympi
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 0xd46e3771d22fb89c8eb4aca0611e833aded3624b54f10b3066d359ebb0375d0f. 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/cbb76d71-1dca-4e3f-ae39-703e50ad0727.json and https://artists.proofprofile.net/proofs/artist/cbb76d71-1dca-4e3f-ae39-703e50ad0727.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 0x55135b6ca68bfd1c11e331f04e8178b1a6105e336a412887b0ac317436f59a7b. 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/GBLV61819482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eccec3ece4643284f376aae869b51d5ddaf89832b800ed094977a3fbdf98de. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBKQU2326197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12307c70ff978880f0b204cd94d46af1c657ddb62f94acb91b81dfa8036c1ab6. 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/GBKQU2326198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c835ffc7267e362bf64a34646d074b948979cdbbf4567791596278e54034dd2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZAPJE2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227f44da9d651d1f93e03718245371b1ad464de5aa0a8ca25f08b2017eb973e4. 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/ZAPJE2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cde46d454aa5a45b6dece780203485b0429a37b30ad27fe3bf5ad789b19104. 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/GBKQU2426301.
Bad Habit - Roque Broken pitch Legendary mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4258a11534f50d5d8e02e1477cabd71aff9728a6e23b54f6bacb8bb47f225c4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU2468706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1823f1f551ccf8c45ca85faac17ab60918c5dcec8c3591ad475d8407c587d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2468707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810726fde2ac998ad9e99333c188bfb37231473941397591921057b4eed1c96e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBKQU2471885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c705bee32e040719cc0068946be732d3ab27cf41f0d60b2f6953764a73dc86. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBKQU2486846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf5888a0715a6c0009cbd8b59575c392c72e1d499fb135b19e0d98791158dc1. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBLV62405203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c2c263f66f59fd5ca594376bed897e723d089ad03f427506df037fe62f527f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBLV62405204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d07c292749fcb3f027a166b97cbb580824e46eed95b2bfb7cbd1931eb79f3d. 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/GBLV62406205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb3a611683c5019d701430925f3aff0de7aa8ce3b4a15e97f722f5798a0cdfc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLV62410577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c71fa9c615e3726c7e0dd8130e9f06be4f50b09f8dff261f2130a7d224074da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLV62410578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04839ff3279884fe7f00a965ca38751a07140ecf09409f120528275545970dbc. 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/GBLV62410579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931b4729a3a19b1b6320135594798360b43dd60db7f26c4a1864d56aba0318f6. 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/GBLV62410580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bca8ad26df856a128fca33f3eb8adbf914090335d37d8f21166849d14c22aba. 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/GBLV62421147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a857ca03130ab6cbb5ced6d0fae7eb7e5cd4c575e2a407adc64731fab40ea47. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBLV62421148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879284acea6eb601d727e9b02bef5f3f3fb986748758ae82a21018af972078b4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBLV62421150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b9c54254a649efa642985b7a6e1a4ed7cfbdd5adc6bd7733e48a4c4a16b6d9. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/GBKQU2503699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e48672485147d0c3abb53298619438bd9ef388f706bdcdac3d80c156503163. 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/GBKQU2503700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d076314a0b2c93827ba403615ed1832eb9e29339c6ec3c2cb5ab432b86a6f5. 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/GBKQU2503702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be771dfd1fcfcb6e365ef497e1b385fb69b080a05f83d93caf8e15d2585b191. 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/GBKQU2522587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa31f2f2b0099e98bb78d0e5238c878f583f9a0530c526100f4719605be2d61. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBKQU2532289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030ea6b0de475bd6ff888773c5583847497eed05592d57b59c66d6d18349a79a. 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/GBKQU2532290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4bdf3eee649a7dc6625645577ddc993717ed9c777b0077745624646d132dbc. 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/GBKQU2532291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1f7aa0e0e993ea73a9bd6e84eb6060da07b41f9c34d3d7a4fc49b5bec7ec61. 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/GBKQU2532292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75340fbb8af1d4e8f25d5715792af409f7101b9829bf44713cb57921f3120fd. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/GBKQU2532293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84796140b465054e4979d6c46efd4b891af1892f207ca9371f4ad4f621b4208d. 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/DEY472574618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162c78475000d5b0fc7a1357376dba8fec1d5d372b93bda1623fc746a62074ef. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DEY472574619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82e91284cb67fbe510a09edb93cfe262768d97e7cd4cec73121113e8252b1e8. 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/DEY472574620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f179972538bbfa3e981e135be3ff1bc32bc6e080f0a9ff0db73a0ee24c71b86. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ZBKBG2500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fb80dfb8e3680fa1428c2162f5c719c504d27d4f18748485d060a507b6198f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZAEI71800556.