The House of Angelos (; pl. Angeloi; , pl. ) was a Byzantine Greek noble family that produced several emperors and other prominent nobles during the middle and late Byzantine Empire. The family rose 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 0x1e93db729684a6ae5c8d53634855b5515bb173e4fa49b75ef03ae8d8409a39e3. 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/d6409f4b-764f-4ceb-b69f-a98a6041024d.json and https://artists.proofprofile.net/proofs/artist/d6409f4b-764f-4ceb-b69f-a98a6041024d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let the Music Play (Claude Monnet Remix)
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 0x03e6fe331efb6a484c076e7e860ce1c285df46fc13e3497853ebf3490c8ae063. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEU671703500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26a1f79cb026578fb1950c2f9972313298725b1d1164c9a596b07f5af3c9908. 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/GBJAJ2101435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b460fa0add4629796cd4097f1cde61d8e92a03c5f9c49450e57dfb497f35553. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/DEU672200361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d1c4e07e075c8459ce77076ba5f5ea28945e04c5d22b12817e273e38eef4aa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM24S2300838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e568aadc8fbf2f0b0fbb5281e3f592f99a634f1031ddaf22366d9bb03ede12b. 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/NL8FJ2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c691163f5bc422c3d2efcad0e7f37bed3b96763db7602c5f708eeeebdbf605b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USA671800380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6153997ace815ef719f526a1195191a75d634eec0acb2afb9058a1474fdb65db. 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/USA672100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c5782c7c9e9d45e4b2fd23371000f9c39b4a90ddcd0ddb128de7ac010fbb43. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32378030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a7d120aa88d237b6a40c294557f37a75932ad3c847e93f6122e799d279cd07. 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/GB7NR2369801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4a68dc9911356ebd7e222a01edc0615a52675cb89e25d1f52d33d80dff2f6. 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/GB7NR2369802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b65ceebfbac7e3672d1cf1b4c9c80edcbe1d9b1b96cdbabff0a58836be8182. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/PLE072318201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80d659ad2ad7168acf1b282909483c500c90393103dda45edf81dbcfc201fa9. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QM4TW2483231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f7e3bb2bca3c9b5f2c8becd82f3cb79d4805fc08e9123da70918c6a32bb742. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/IL4612500020.
One By One (feat. Elderbrook & Andhim) - Angelos Remix
One By One (feat. Elderbrook & Andhim) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c76b86bffc77e31c0d2c043a69ebd43c3f36162a46383dc3494ef83a974b58. 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/USZ4V2100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a49b5a008f030039567f61a152bc08963dc1335299bd6ca97fb81d7b5975e29. 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/DEU672100980.
Sónar 25: An advanced music mixtape by Black Coffee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cdee065c74d9eb2c54191cd49b30e05e5bc5bc979572d6e059a6329f0eed0e. 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/QM24S1810832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1221dba76755ff926ce3da28203ea8e1cbdf15c63309975b7d71e35fc9d20485. 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/DEU671703499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb188843930ac9e3e96b6cb1ba4e38f638ad08629d9fab7be66794296fd3816bd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8FJ2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e8dd8d495969c9ceccd9ce83244bbb5ba8754c11a8fe5ee36a9301c41e2ffc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJAJ1900558.
Sol Voyage 012 - Tribute To Ribera (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf7076f682cab1dc9ca980b1251ac913609cadbd231bcd30a718fbe5279ec3a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2345122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf7076f682cab1dc9ca980b1251ac913609cadbd231bcd30a718fbe5279ec3a. 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/US83Z2345122.
Afrika Elektra - Angelos & Da Mike Remix
Afrika Elektra (Angelos & Da Mike Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501e09f86d0a328e727984c59d72091a77cf07f6388eb6a9daf343702b6dc1ea. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEC33501163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21fed1533cc5c2858d9f3375017c1da84e4dbda78f708d19359c02619cb1090. 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/BEY921907029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b095630ceacb6059c2f271859a3a7fa9c262efe98213df313553cd85a441cbb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEY921907030.