A ball is a round object (usually spherical, but sometimes ovoid) with several uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown b
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 0x97d2c15eea1b44964ab5ca4e7ec5cf1b708fb8e86ceff0fe0b752fdc286c8136. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59569946-7825-4f74-8bbb-7ada34efbe42.json and https://artists.proofprofile.net/proofs/artist/59569946-7825-4f74-8bbb-7ada34efbe42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like You Are… I Once Was… Like I Am – You Will Never Be
Som du är…var jag en gång…Som jag är – kommer du aldrig att bli
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 0xee95d345f42126579e63d6dac9c810c17c385452593869d3a7bad2f5e6667e5c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:23:57Z), 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/SEWRL2500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51909244a060ca0f6d2f0eb92d2a6cbc0c7cfc9683cfd5919c11618518caad6b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/SEWRL2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de0821a592a18bd181030ce861a447f45234a700c712091f8e3537f51accac7. 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/SEWRL2500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8645121b4c56cbceecfa763674d9c0e91c80d9a15b9ca0967c05b168c9a6f6. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEWRL2500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d8cdc59c5dde49f1c8287259d461189f42cea5dafd627a1727936f75bdd88e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/SEWRL2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d442e05e0927d3e85052b2fa01ebdf45462ce9c2255b64c1145ee1f5dd170dc. 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/SEWRL2500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88474d5de24a56137c682a232d035473d66a6e37b9d6028115dc355dd9f67b4e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:12:36Z), 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/SEWRL2500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa972c262b5f850e76f6ec9daac61b58c2655f3d108515debcdbf86f4ce40cd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:25:50Z), 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/SEWRL2500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80546cfb1929e771e6c68a8e97eeae738a5029c102f31ca2327be2183ca8203. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEWRL2500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ece4d744340cecb8efd933e2d4ee9a348a86775093ec7b127512310f891de. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:18:30Z), 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/SEWRL2500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2815caa514e2d1ffdbdc660b4f9b5ac706b1b1a4b9eb4ae8c73bd98691bbd26. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEWRL2500112.