Rhapsody may refer to: Ancient Greece A work of epic poetry, or part of one, that is suitable for recitation at one time Rhapsode, a classical Greek professional performer of epic poetry Computer
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 0x537438799c8825c6c4f107f7243cd15ebc0d66f5ef2e48c54935fdb012193342. 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/89218df7-9427-48df-bbfa-efbe803bad6d.json and https://artists.proofprofile.net/proofs/artist/89218df7-9427-48df-bbfa-efbe803bad6d.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 0x628e4e93dc9c67feec1b3301c5b6f10e30bfde926631a944dad5bae7e8d10332. 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/GX8UM2400347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f1bd58f38a0133039d4e153da762da8755012cd7eea809447cdd4bb2b8f6c. 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/GX8UM2400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87446891cdc737166a8e7a3b99f06cfd45d206cffaa0038668146e58aa72d293. 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/GX8UM2400349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5bbdbb3e541541f8c20e92aca0baddb02d7ab6d2c6a2cd68cfc90a4517cc56. 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/GX8UM2400350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9a9fdc0fc5715686b69c751bd2e70c1cda5b062c2bd7a750909fb6014da00a. 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/GX8UM2400351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f0ea838f4925922e062542bab723f243188563456e09a881bee6774e3603d. 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/GX8UM2400352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace67fab2bb4c452e3efb43e25fa0e2cd73b7f5d6fac98256c730975fcfc27a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX8UM2400353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa81078a78eef40f757a180729de3f0e02e5b1640aa2e3e26678b0fa67fc04c. 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/GX8UM2400354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff20229ad728dabd56a8dc09c314d17e5912919bcde061ec8a83b2743480265c. 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/GX8UM2400355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c1c837ecea7c53f8a0ced97e08ed247ac88b4a3fab5250ca970a4d0eac45b4. 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/GX8UM2400218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39104c1d6ab12c1f0e4718d3299bb284b34a755453171e92ef30498f41a3db7. 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/GX8UM2400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7ef98586c56ce114c5cd6847607874a1ea61739875fd2cffeeced78ca1a58d. 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/GX8UM2400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d84087aa2911e3ef0e47286bbe9f3b78b0196eefa4af401e6381530d75934b. 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/GX8UM2400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829f5cff86dcb8ae7c69a6e3aa06718366148b56e0cd7e2c9ea9276cb80ef4f. 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/GX8UM2400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e6ae9d3825920ccc7c3b3bebfd95073e7572f19df9cfe956fe71cebab014c6. 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/GX8UM2400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c35311b3cb655b0c9e35439ffb25fff23f06ab79dc8fe4c40dbf1b23bffd87d. 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/GX8UM2400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dadba37ae0f4ceeea831ef7c1db346cf58f924e668608fbabb0a9090224f73. 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/GX8UM2400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05be3b5d36f5a805e7fc639b87145eac7bbae2ff4b389414b17cf82ebe4d79b. 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/GX8UM2400227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f45c11480b10da609754b1355aa4b4044f90803abb2427d5cba1a4a023480c. 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/GX8UM2400229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68a740f9fc34e2c851010fe62b36449fb47b014bc6eae28d3cde4fa73c24b5e. 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/GX8UM2400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f920c7319bcbfeef809eaf0052136ba338c4cbb8aa41a1fe57d65a47e42771d. 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/GX8UM2400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76f68d0c13f36d203e2343c6660c98e1abd77abbea6dd72466820a2f585d503. 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/GX8UM2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad7d2ee69ff1bbd759d5822e5fd25bee6a3fd50184f1edf3b78717c12b4ff23. 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/GX8UM2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc530617233f488fbc817c9e500f5899ee3c414c425123151a6ffc34147e8250a. 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/GX8UM2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf09f4a995c4b7e19fe1b34a44a170aed0b4f81703cee84e0c362d1cfc3964e5. 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/GX8UM2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8beaee6d0029cd4e547d01f04664f957ea592117cc8a6d8bcf0da88d56e11878. 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/GX8UM2300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13ddb9d4b27aeeff0bf112c8d47e84df5cf7ebc21dc5d21801bc4ed82d67073. 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/GX8UM2300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0617db44a85596e7c8891ccd2b462ff5dc388a8612dc50f9bf5d0ec3035b2f7f. 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/GX8UM2300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb0907c9b7f09d7638e965509b97cb4f16d9555a9642e29e2486137cf611795. 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/GX8UM2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a52fb0c596f6b7e7e650b8d4f7ca1388416a34e8e8522f6ff5130c4621e4cbb. 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/GX8UM2300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859615715a406e29fb5df12690d200ef8b9dd8ea7c368c3de7a253c52e45474a. 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/GX8UM2300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6c5f4381b6f2048b5262ac465e0ba70bdc00fd3ad614d44db4b6252c37ec48. 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/GX8UM2300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2347a4501644eb4e48ef23fd3f50012cc4c621270f05ab532e24355a1d168d43. 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/GX8UM2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c85d27213c329f0365151081300e26be9f014c637535fdaac008bbb14498844. 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/GX8UM2300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8691ef7bd572b86dae93146cb7a08849c3348f7137d66cfa84304e209e29641d. 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/GX8UM2300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03c4503cb0997c5e35e4334b68bda8f6ccc3c90011b9d3aa599b4b88e3bfdfc. 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/GX8UM2300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe00cbb8d158b05a628a2fc216406cc943f460780a9509712f398baae50ee98e. 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/GX8UM2400228.