Al Marconi is an English internationally known performer who plays the Spanish guitar instrument in World fusion, Contemporary classical music and Latin music (genre)s. He is an independent recording
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 0x97664d2c4580e3ad0b80e5d374b92e2cc91183f502b4ef01a20bba1a4bdc4199. 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/decba7b9-d64f-46dd-a56a-0027873243bd.json and https://artists.proofprofile.net/proofs/artist/decba7b9-d64f-46dd-a56a-0027873243bd.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 0xafa33f9260a061e2eb92bc0c3ffa29bf7a83f3a98ac4c388ade7419de3345f0f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCACK1526436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f8cc0cff3ea59d698b87ac9858de9e3a33e0701948fa688debfb00c16d95cf. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCACK1526442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13ff40a0a357d6d529d5937bed330aff9f03700fb6c08c80affbe6d29b36f55. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACK1526446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e95e1fc74570f53cf5d484ad9884f7b34f05a6c2de77489f02ae9f52236c7e. 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/TCACK1520671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7041381960511e60ce3b665f660dcc46509207f97210a8115e235811a60d9e5d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/TCACK1520673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6e5d23afe53ac0104922c5f659604462cfae208e816fee4188a4d11b1f26b5. 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/TCACK1520676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4429768a0903d9f2c751cafe3dbf945a02b7e47ac9803b1b42d2d8be2d8197b1. 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/TCACK1520683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb46b824599813364e6603be0c77de62ef642e0a105d9350b7033701a1e9574a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/TCADP1869901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8be7e489381977a70785482dedd82421028b0608181743b7009d9a672977e5. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCADP1869911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2101d51bc5e2f28d802a9d229acc0eefcafad4326f6f77f07c4f4046fb5b9b2. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCADP1869912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2743762661f2d53a6007bb5caee72f7ed04fbb935f7316ae848bac70e82e02b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCADP1869915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3800dc2ddc7919b2ac5ee685b2bfe03991c8bbb355056f4b9be64c1537872c4c. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/TCADP1869918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db67ac6ba145634f7934f6fa109aa96c3631c09c60029574c3c7959449e2ebf. 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/TCADP1869921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8301185cc494d9dae75505201ae7a87f0e09f74f7799605497e3446fc3e87c4. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCADP1869925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca5f445e23f9140253dddc8af4490984e624968b490f9d67373dc9fe7ab35fc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCADP1869928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5d78d249dccc1c35d2fada8533da674e60021541e299182e88063932a88b00. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADP1869930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa005b8124d030b5d8627876fecde5b34c17f8d86a440f5620ca7e9af97211449. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAGM2269498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10139bbba3762f44ce60d42a854108e2930b57fab77ee55ea9f22fe2eea26530. 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/TCAGN2209004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bb64f4aa184ab6e3d65c9c09154cbf74b15d6921e0f60816dabde8a4ffbf5f. 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/TCAGN2213698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b3e938a95fd0830672cb85f8dd1b812560d29f1fa998a3fa49d101308b1907. 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/TCAGN2213712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f9718ea7775b875aae1d3783a5ea15d81230895d6b01eef70a8fd92219cd53. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAGN2213718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3604065367fd19b4c75e60f7d910bbf1035fdc60c5a3b11e68a0eaa9ccc3bdda. 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/TCAGN2213719.