Toledo most commonly refers to: Toledo, Spain, a city in Spain Province of Toledo, Spain Toledo, Ohio, a city in the United States Toledo may also refer to: Places Belize Toledo District T
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 0x11524e6c7f43517c2c7646952cb57a29c730d223e0421dfa049a37f037d2175d. 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/ee7cd626-cafe-41af-a0df-de0746094973.json and https://artists.proofprofile.net/proofs/artist/ee7cd626-cafe-41af-a0df-de0746094973.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 0x504e09942addb180127c8926405be927a2407a41bac547c21424f3759d77c258. 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/BKSUV2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c542ee4b85b2ff5759ab528a03b517b1bd49cea4fcb6b96e486050084102b6. 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/BKSUV2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e9b732c9c2143998a64901033cfc56c8085709ccaaafd274d8b213640bfb5d. 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/BKSUV2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72989d1c5dda143182bb20b42564bf061db930e49b82238516f08df066d3e8b. 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/BRWMB2400288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cdb24d1a239e356787a550a7e43ed0c829659ca6ddceb5ed6e6de61149e725. 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/QZZ8A2397693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1ba60d776e1bf77030f047d9ad2d30b3b325257ff7dbff338c7fac22fae981. 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/QZZ8A2329810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051ddbc628f30b11368914d0d395f5d86c14ca2c99a4ba2420e6174293bf2c97. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNMW2292100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf38de2448c923e11f3f6de8fe4efe561ac85e46bbd298c0127ada4cc50aa00. 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/QZNMY2242348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ba2c578309a35ca55dadfc73bd4e90cdf6f8ac753454fb0fd048526535ed43. 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/QZNMY2242352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b9b7a4978449da390bb32b21545cb05242a9d07e092d1df7c59d7bd3111549. 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/QZNMY2242340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8625597da47aa7be3f157e72b07dcdbc9d7d718c2b6d309e1cdc39711f123e3d. 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/BRRGE2400908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05038bfbc533eac29fb4f630311ca3878cde32016f4484c053ce36c7dda60a57. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXBGP2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fc4ae92421db308b105a1bda991292e0780f77c901ad821bc8cfdde5b191a7. 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/BRRGE2400894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571425fa719a096105f5114e57d2ce848cfbc164b1a64facf5acdcb82909a292. 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/QZNMY2242349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed549e49eebe03642d06a8ce0c19a798b02d9e4eb1bbb4ab77f3b3325478540. 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/BRRGE2400888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0354bd0dcdd111c10fa2eb9ffffc28e86c43c17d31004793d67219d3f89161a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNMY2242346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3c16217a3df0526927cb07614accdbb4818817169da4dc7e6a6e23465e81cd. 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/QZNMY2242353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b394521741b57cf42ef118027062bad944f06ea21eea4edd400aebdfdfac387. 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/BKM2L2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50041693ad7a7474748ed9039f35027381326950b60dc69696734be8b2266d8f. 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/BRRGE2400906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1e36d98baf7682fea172ebed002f14ba3cc100594e17013415d13bf9df3a63. 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/BRRGE2400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2af3792fb72d4841664b5c206a629c83aa94b8148b2740b99dd301401b54d8. 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/BKM2L2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579d3b6afa5c8edf8e469edd19b67d6340225265010828083b5323e93d2aa817. 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/BXBGP2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adcf19230b3106f37d348e0d544d49c953ef055be5e9c119fe16b239abf2163. 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/BXBGP2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2349c4062d46b9b2cb3335552e870de47a796c45876f770cca8762d4fbaf5885. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXZYA2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3e46c3720a419a1aaf6e83a09939854b8985a4c63869756558dc7b1047c748. 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/BXBGP2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e58b2830e5a6fc1195ce3feeef7b89f028e857aa959a6c10785b9ca9505872. 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/BXBGP2300049.