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 0x114422142cae3d2569b914b80d8500720f06fd95fb3966551bfbea866b566b95. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/182cf716-5136-447a-b84d-3c2690af50e2.json and https://artists.proofprofile.net/proofs/artist/182cf716-5136-447a-b84d-3c2690af50e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wagner: Tristan und Isolde, WWV 90 (Recorded Live 2009)
Lohengrin, WWV 75, Act I: Wer hier in Gotteskampfe zu streiten kam - Gegrüsst, du gottgesandter Held! (Live)
Wagner: Lohengrin, WWV 75 (Recorded Live 2011)
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 0x1fb0a3cd8e1e5b86f00f3c822df152c83951ce5de7c7068d6e7f2b3d68e40a97. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GB6CE1800176.
Lohengrin, WWV 75, Act I: Mein Herr und Gott, nun ruf ich dich (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb063005f224abdf76b8a472de1c482242ef56073a7c619ab5c20b393a5778ca4. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GB6CE1800182.
Lohengrin, WWV 75, Act II: Entsetzlich! Wie tönt aus deinem Munde furchtbar der Name (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ddfa9efe7d3f3c5ff3d585bfc926bd22f3e9d9c545f3e175b3008876030bd2. 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/GB6CE1800188.
Lohengrin, WWV 75, Act II: Euch Lüften, die mein Klagen (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5df789d122705fed782269a1347c9baad850258aef76e6d53607bfb0acd8ff. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1800191.
Lohengrin, WWV 75, Act II: So zieht das Unheil in dies Haus! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b34fcfcb1a529f4eba7d59da915e8c57552c063ae6b6abe2610583b1bec3179. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1800196.
Lohengrin, WWV 75, Act II: Welch' ein Geheimnis muß der Held bewahren? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a52ea036e19bfaf6b306a9d0e5a8f606c0e5628bdb7b1521ef9aad2e1d8cc3. 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/GB6CE1800204.
Lohengrin, WWV 75, Act I: Durch Gottes Sieg ist jetzt dein Leben mein (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dac0dda527d01334b4272a0114e498d2da0a54459eb4eb505218150a7553cb2. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GB6CE1800183.
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
Lohengrin, WWV 75, Act I: Dank, König, dir, daß du zu richten kamst! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74efd37ed1c1c711754febaa3eebce5145eed522ab6ba9b60a83a4c889afaaa. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GB6CE1800170.
Lohengrin, WWV 75, Act I: Nun höret mich und achtet wohl (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a450611990a1b048159da6b9f3a11d20ffc3cb4a144367eeb40c43a5a4e3b89. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GB6CE1800181.
Lohengrin, WWV 75, Act I: Welch' fürchterliche Klage sprichst du aus! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61ed070f8fddf88f296a8147131d3b0bb776e805069a49938babf16be7f5e4a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GB6CE1800171.
Lohengrin, WWV 75, Act I: Friedrich, du ehrenwerter Mann (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9dcaf3e4b8351fbac8b8ab078d3a75e07eec4dd693f2c4af5716ff6c596463. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GB6CE1800174.
Lohengrin, WWV 75, Act I: Nun hört! Euch, Volk und Edlen, mach' ich kund (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8712985f1800024bb5e4d885b4a97cd63e11033e6bec3b2d35e9a7d8006f30. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GB6CE1800180.
Lohengrin, WWV 75, Act II: Erhebe dich, Genossin meiner Schmach! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0471af58c99d4a30bda0406ba1eaf33531ced3f3d25bb3be613aedbe166b3b4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GB6CE1800186.
Lohengrin, WWV 75, Act II: Was macht dich in so wilder Klage doch vergeh'n? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e589045fd62498cda8686a5077dc47038dbe7fcc3ebcccc9eed1f9f58f559c6. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GB6CE1800187.
Lohengrin, WWV 75, Act II: Du wilde Seherin! Wie willst du doch (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958f4c94fc2f5059614bff1453ac87d9422c79952898a03ba93752478e4869a2. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GB6CE1800189.
Lohengrin, WWV 75, Act II: Der Rache Werk sei nun beschworen (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d4ac907f1ecdfb394a1777e5fb9796c642c040cdd7412a6e78da45ee847215. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GB6CE1800190.
Lohengrin, WWV 75, Act II: Nun hört! Dem Lande will er uns entführen? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65631a069b7ae311013aa3ae654bc077c8856ef80c9bbb05e3c1b0a31a14b228. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GB6CE1800199.
Lohengrin, WWV 75, Act II: O König! Trugbetörte Fürsten! Haltet ein! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae7f5a54484bbab296956ebe0d425d6347c1aa30ef56afbf4a0b2aa03c5d5d0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GB6CE1800203.
Lohengrin, WWV 75, Act II: Mein Held entgeg'ne kühn dem Ungetreuen! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129eccbf65b7da93ffcb894b2651cb471436f28ec2b41c188058f33aa49a4a94. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GB6CE1800205.