Sons of Apollo was an American progressive metal supergroup formed in 2017 and composed of drummer Mike Portnoy, bassist Billy Sheehan, keyboardist Derek Sherinian, vocalist Jeff Scott Soto, and guita
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 0x065fd17738131733626220f6c0cfd34e59138ad43c60646f35d6d78d8b9a3aa6. 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/d2c74ad8-8a67-4ef0-8723-abc1b1a27be5.json and https://artists.proofprofile.net/proofs/artist/d2c74ad8-8a67-4ef0-8723-abc1b1a27be5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live With The Plovdiv Psychotic Symphony
God of the Sun - Live at the Roman Amphitheatre in Plovdiv 2018
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 0xde560f48c9ddddc0ad4207638570ae4b3eb834098c7586a1085800769e2cae5f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBDHC1909001.
Just Let Me Breathe - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d5eb9fe6bce0256ccf2084f0e1394a1b64057a4c9fdd2b9e4c8aa6ca65a701. 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/GBDHC1909005.
Kashmir - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695c0359b3b04fbcadd988640d00d888ccea549a761e90580fabba7c7284555b. 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/GBDHC1909012.
Gates of Babylon - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1ffc64c23d608b30ab831272f008e72cdc524f9a88cfc5dcd648bde661a1c3. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:59:20Z), 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/GBDHC1909013.
Dream On - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259b2a06debf83527e98e03af76da374463656d6a58c8dd98e1f2d27fc33087d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBDHC1909015.
Diary of a Madman - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd3a66d87f0f2aae872539cf8e66aed6ab1b701a144482a2d3b14ccf05d0f89. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:21:51Z), 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/GBDHC1909016.
Comfortably Numb - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac29c3bb0a3f4ab9419a64cd04180d84e7a4faf057dfb897c3ee05ef49157a7e. 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/GBDHC1909017.
The Show Must Go On - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982f9d427734ef0a750a132c399199d38102e7dee969045e7241d13703432ff0. 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/GBDHC1909018.
Hell's Kitchen - Live at the Roman Amphitheatre in Plovdiv 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf94390ef300453a00fc73ea7850b1a3416c816d5b4bf522e4018aa37e1b267f. 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/GBDHC1909019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b1669611f24fc3519e3ebad62ffb15dad7778a0526e03fa36f4551c1664ce. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDHC1779601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29bf5e696fea819dc0030d5df329153ee540f25f23823c858f9f7bde6cead5f. 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/GBDHC1779604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f7f6838127e2917cc47099510784c76dd0596d1b0c0adb2ba0da20842a1051. 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/GBDHC1779606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79273dc0f2ceba6becfbd97c63334883d5a973f0af674ac3764ff8b6cae492f. 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/GBDHC1779607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d92de5cb303720b86ca27d25fea679ab458c4013b9267410cb596186d7ad44. 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/GBDHC1779608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65db1a7e1355f51d79e8aceaa60b0d4fbafac5597613c832de8c58f289ec1ea3. 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/GBDHC1779609.
Labyrinth (Live at the Roman Amphitheatre in Plovdiv 2018)
Just Let Me Breathe (Live at the Roman Amphitheatre in Plovdiv 2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360c65c73647fbabf0b9cf69400e1bdfdad039b55ab351ec5bad634e3f4002b7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:38:32Z), 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/GBDHC1779623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b4067a66253e4a3f9015adcfe97a7d7dfacb6a98f9ddd9c06bb812e475f050. 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/NLR491300007.