Delfins was a Portuguese pop-rock band, from Cascais. Its lead vocalist was Miguel Ângelo. Other members of the group were Rui Fadigas, Fernando Cunha, Silvestre Magalhães, Pedro Molkov and João Carlo
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 0xaaa989325d8c317da759401b35ea2423e23f1b4c5d7dd54bcf51b0174cb720aa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/433de11e-1893-4288-bad8-aef0831b7d40.json and https://artists.proofprofile.net/proofs/artist/433de11e-1893-4288-bad8-aef0831b7d40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Casa da Praia ( É apenas um sentimento)
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 0x2ffd8dfa95510d67bb8be13cdf12b8d72050766b8e3f27e242cce80a8488059d. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/PTEM18700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ad5499ff8ea1db7e2a6de0fd827fa12ab8b82c5a57237ad043055979ad8591. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTEM18800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcd20322571466090a1a24f6fc1f392130de14852f846841c84a132d8bb0f4c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PTEM18800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88057f7928409a78e979d05f7bd7a8c3bd41050b8730ee32c806a953fb9d884d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/PT3CB2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362583c25567b9bd7ada4be55e07b7ed8e4a84159f40d6b3833f7fac915afcf3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PTBM11500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddcde714edb924bae5db53c2d89068cf08de9fd2b25e761a492177b9f7ddb37. 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/PTBM19400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1eaa35a8da3fbe64a229e812f1263cb7ee29544adefdb34d2ff0abf2ccc05b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PTBM19500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9eb020a90c263b0d6d748d0836837b4e15885e3c9d2a2a1e3a41036b0cb8f8e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTBM19500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a66d2e135435ad7ffa59b83151aa607e574d625ba2c2bc383464e655f2cb3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PTBM19600126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d14e65407c77f65c2016722f9bac842310008afde1cc097c30b0e61b2530d9. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USA371115684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218624c388cc77771cbbad310f77a3c7fa332a97c94fa70774fbed2f228320f4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USA371115689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedac9d8d0fa20a1bd5a65a781e2438c8ddbb2ebd79849c5953157d7e2453d61c. 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/USA371115682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a8373b8e3bad78e64b5d7d51dbefebca06d79f869acaf501f88edbaf9a7b9f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA371115696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b04b8222492e829ca0463b6853ff0a78bc9a7f5ce6824022055cfdaf09cb5f8. 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/USA371115702.
25 anos, 25 êxitos, 1 abraço - Ao vivo Baía de Cascais CD 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e6691cbb387fac46c711ef56b6956dee66b29f45a1a4ccaa8b1273d3fdb5d4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTEM19300082.