right|thumb|250px|Portrait by Allan Warren Elena Souliotis (spelled Suliotis in the early part of her career; ; 28 May 19434 December 2004) was a Greek operatic soprano. Biography Elena Souliotis was
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 0x237af4bbf9baaf7bd112ff2065085c0208040752785adc9fa384af94b20799f8. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b6c6c3d-b472-4c74-958d-95bb04687ea0.json and https://artists.proofprofile.net/proofs/artist/1b6c6c3d-b472-4c74-958d-95bb04687ea0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xe6c96ab0a4e6143a7d16c1f256640f1f0a8e23c80f6448aca5ee63f61e624870. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842701 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Nè venne il Re?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2f3adea14d16e5360e8685ef6525da2601f991e3da4586ce111e2c8ae2bee3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842702 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Si taciturna e mesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020a8426d75e9857ae0482b9ea3180a22c44cce8fa72b441fea1c892270c2266. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842704 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Deh! non voler costringere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9d4d32711c35948317556d02d0dbb96a63a284994a85fa10930307f6b03c43. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842705 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Come, innocente giovane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2850650b66f0f35e785f602750f2d5c4cdb75d0f888bb41fab6377edffde29ec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842706 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Non v'ha sguardo cui sia dato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9cbe2cfc2676174631822f65df72e86990b41a92464aa977513b08abf32d03. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842707 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Tutta in voi la luce mia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777bb27a7c1b5d5020542571dec602f010bfa1f07f445f990284068fa4d6b7bb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842709 — a six-check JSON result.
Anna Bolena, Act 1, Scene 1: Ah! qual sia cercar non oso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb365d4b475adf4d4d204528484c04b429e69bb14a023eaf6181b5e3f43d5bf3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842710 — a six-check JSON result.
Anna Bolena, Act 1, Scene 2: Da quel dì che, lei perduta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c87ef27b81a84734ba111d2dcd96ab25dbc20622acade78e7482d6aeaec674. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842712 — a six-check JSON result.
Anna Bolena, Act 1, Scene 2: Io sentii sulla mia mano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4d84f3eae3815561f84aacde3692ec660b4467eec074c20e41aab79bdf5289. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842715 — a six-check JSON result.
Anna Bolena, Act 1, Scene 2: Questo dì per noi spuntato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091cf1cf4a5b42999383d6b9774da1fadc30efdc3c824bf35fe7f4ce5c417679. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842717 — a six-check JSON result.
Anna Bolena, Act 1, Scene 3: Basta, basta, trop'oltre vai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b704f85e7a5d550868f4a053d56ad2d5dbfb71dd91e72d63bf004e6261b2f0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842720 — a six-check JSON result.
Anna Bolena, Act 1, Scene 3: In separato carcere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c7e1801b59bea26d6592c09322e79605cdba2e832c78298d878bdc24f67426. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842725 — a six-check JSON result.
Anna Bolena, Act 2, Scene 1: Oh! dove mal ne andarono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bb81febf6c11f8ab0a233bdaf4fe8bfbb3d2360f3dee28264d0df4a4638f87. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842726 — a six-check JSON result.
Anna Bolena, Act 2, Scene 1: Al par del mio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67466529320a27af2018d01aa81007c6cfb9a31a8202848c162d9411343aeda0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076842728 — a six-check JSON result.
Nabucco / Act 3: "Va, pensiero" (Chorus of the Hebrew Slaves)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadf79d486e7e5dfccfe63e0154c547dd1f0a87d8764c6b23a90f88990275ba1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540124 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfc23d78d6ed1f09f06843f904fd26c65008f9291048ef151e66d4931f57713. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540101 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba94c9df05fd81ac49c0155226eef76599e0d5cc099ee06e32ac2bd95d0e38e1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540115 — a six-check JSON result.
Nabucco / Act 1: Gli arredi festivi giù cadano infranti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a71d09716500fe2876baed07074a1ef934cb61faaf6011c2557f5eeac0c368. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540102 — a six-check JSON result.
Nabucco / Act 2: Che si vuol? ... Il maledetto non ha fratelli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aef93a18d2c449c909c26d71e30989a250d8b15b075b59a37be8ec225e818c5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540116 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb6b95b87209e5930fe55b54be9c62eaf59f961fdfda275e020efd4440d2aa8. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540103 — a six-check JSON result.
Nabucco / Act 2: Deh, fratelli, perdonate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d843e8572e55a61c8ce60c6eb460eff73bcd07bbd4b6857ad06a81f5a3f2560. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540117 — a six-check JSON result.
Nabucco / Act 1: Come notte a sol fulgente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1360f8d901fa1c6bd1e215451a8b68afeaa410845170e7afca0cf590ca085990. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001d60bb4ee4318e6941647003dcc5c905e8836abbc1dda5eded78db0d015996. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540118 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac082e9ed2d97fd2be513d76469463109030a710902c54fbc1b73f042021248. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540105 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334d198530d6d59bd0fc42e81f146abee5885c97bbb6950576ea54b86b7328bc. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540119 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696705e3a82a07bc0420962b7e95f919fbf80604304bf9bbf7871cfb6e444212. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540106 — a six-check JSON result.
Nabucco / Act 2: Chi mi toglie il regio scettro!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002be88233e2ef137dd05a86b86c552d3fe7170605c3979de5d2848d77c662dc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcb99cf33bcf20369eb3584601cb1d3243cf1f5045bd6e7f42512223b9b25c2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540107 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a043ecb5e26c039a98cf78a358479b913651a4979390595aa1f4b5448638953. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540121 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4991fa3908df7b9caa0f0154668c7a57e2b7dc77d4ca2b57ff52f159dc9822. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540108 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3790752bf7f518a4581589cabe58ea7619e2cb23097bed90356b5a8db30f1b1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540122 — a six-check JSON result.
Nabucco / Act 1: Tremin gl'insani del mio furore!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa09b48801f213f37f0d9cd1e9dc9cfb8a65cef13cec83ad3dc1fb2cbfb8125. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540109 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ed1f2a0da0b05a36e419df2adfebbf36e9e09344e0d71e5d51dcfa8456ea74. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540123 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadf79d486e7e5dfccfe63e0154c547dd1f0a87d8764c6b23a90f88990275ba1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540124 — a six-check JSON result.
Nabucco / Act 1: Mio furore, non più costretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aa65b7c5410386f5db57bd55e243ebbd3522cb2e56ab7a38a053324812fa6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540111 — a six-check JSON result.
Nabucco / Act 3: Oh, chi piange? ... Del futuro nel buoio discerno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd797befc755ea5f9dccbf131f3f5aa374ce2abb47fa55b9073205d4e6877a3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540125 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a8fb7c60a318af1d1b1a3fc239435bf063af6d0ae40ef80962223d07beaf3d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540112 — a six-check JSON result.
Nabucco / Act 2: Anch'io dischuiso un giorno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73fab298949ecd7a08298056f69c9a4693cede6d46533895655cf32c6f62aa4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540113 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0267329498abcc0ec6564710d10d0fade92a359dae2e3767d03a1d81f470cf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540127 — a six-check JSON result.
Nabucco / Act 2: Salgo già del trono aurato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da62dfcaf17c113c8a67511ad99477be4e11a80ffce3e6a3631b90ead79ef30. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540114 — a six-check JSON result.
Nabucco / Act 4: Cadran, cadranno i perfidi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8bdb2dfd5b1ca5e8334fb4a543028d0ccfb5bb734f141d924c72a9881b77d9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540128 — a six-check JSON result.
Nabucco / Act 4: Marcia funebre ... Va! la palma del martirio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c66764e3635d6c3fe6aac03fc4c0cc8eb82ce7079fa016677be6cad3a79d616. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540129 — a six-check JSON result.
Nabucco / Act 4: Oh, dischiuso è il firmamento!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e456b597214c75f86e79c43608acd781ff66d021bc3f9a782027bd74997bd79. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540130 — a six-check JSON result.
Nabucco / Act 4: Viva Nabucco ... Qual grido è questo?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288262388f9ba21d2b5bf4f119cb4e36711c5a3bc6aac5b405d694c9c76dac34. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540131 — a six-check JSON result.