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 0x3555238123fb9b5f1035c69f8c1c1ffc1cacce536a9562dfd53e88c9c570704a. 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/383fd308-91e0-4db3-9012-b06b6343569b.json and https://artists.proofprofile.net/proofs/artist/383fd308-91e0-4db3-9012-b06b6343569b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x76a8e12b4f5feca81bd665489fbd450e3a224f9a6899e76cc13b1c4c58afdcec. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:28:41Z), 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/QZTAZ2449663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8eeb9f6f14058ea1ec436c30423b23d63d2d7beccf1f4b32489a08c7d7037a. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZTAZ2449673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dc9ee55674c09270e52ec120927ff37c0ffd84a1ca9c5484d6135d4c82967d. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZTAZ2449676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cccfb58c5ba496cc44d1d9f1a5d55a6270bbd772977208ec00d2b9ca6227b79. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTAZ2449679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d42a27ed4cda39e21c56671b7a30bd00418cbd52f6364fd7eae87042f858b00. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZWFL2485513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8455772ed398f844f8e5291eca50df8ce11ae29e1608607a7d3da5b193e1d62. 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/QZZ772455710.
Songs from the Astral Express: Volume One
Songs from the Astral Express: Volume Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947bdd4e33b7b42932a8fd40f2bd3279583dd0f876e7a689df9b34759376acd4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:59Z), 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/QZFZ22574828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83876d43e8455b975d9ca4dab37ef74e5dbc63b34423ea34c714958ecb36aa1e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA42546190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242fbd91914b356b958851c199785a252c3199a075af40af614f5419a2f4fbe2. 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/QZDA82599824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0998c88447dcc71391170044394c4fe797ceefb190075ff674d282eea00255. 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/QZES82538174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ddee335e6d52132daefc314486e1f559fc94f493d1a7e693f70506087aa0d9. 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/QZES82591842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a30887ef0aef53955ec7c59c33bb7b4c55aa338f1c37313f21535c86f61c228. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHN52595552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4720a59d369b04dab8a16c0815351c87099098ac305faf9cde3c454543b615. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZHNB2543880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85804a3300f338c6b5a187b571519533d87a5a3980981bf89d3a3a36c5ddb7d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6L2516218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252c739fb85ab3ceff303a256d1996e938fb770aa77c5b0fb69b6c50af6a9c00. 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/QZHN92563633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f5ae5f2d149122db1bb374bc58b9d971864471a4ba828eceffda0e366466ba. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6L2516219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38fd220b23df759fcd4ad574df50c1dc4180da453f0e81865912b6bb42844a4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZK6L2516221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4720a59d369b04dab8a16c0815351c87099098ac305faf9cde3c454543b615. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHNB2543880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902c82daef145c323066c264d35c2b587d9683ef1e8079ad3768949d57e81c01. 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/QZNWZ2531285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9d3c2842421e6ae69bd5c7862d86db277e19bbd2c154418b5c68f5b394776e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:21Z), 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/QZTAU2582604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e38a440d825d400081b607eedfd64742d001e2fee2db1b52702e2c0ae95f469. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTAY2576659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3de824488612f8f9319ef1ccb27cbd9c7ec493bc10a4a54f08d26f715dd878. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZTB32521869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe265633e81f71a7a0ed17e1d6988e47c551067dba8f5f568095bc40927d58393. 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/QZTB62511433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ed594b351ff739965e2151d79829e82e2c94a6c1082792ff6d3e73834085fa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFL2580544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d30027309efbd551767cec9c039d99201db21dd13f41c3810d33243aff23852. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:29Z), 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/QZWFX2557657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa224b0a7839e5b6e3c1f8f55206710824fc8e141e2f8e90b0c4a058861bdb8dc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFX2588109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a141868b3c1cb75e4623b72ac65264828f7a201ead9a5ac8212d17e98c127c3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7K2569897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf678bd41a2199e16f8d80244939fa605c5c3be90f1007cf3734aa841f1ff1deb. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:57:14Z), 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/QZZ7P2591669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddf97747a2f43e27c9e0651fe5900cd67b5dfddb93d553b46326c5906cb5295. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:52:44Z), 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/QZZ7S2557714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ed690acd752004df7951523d99e3b3f9ebac6cfc91e7f158c1407d3ef2f42e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZZ7S2557738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916b74151f6987dcfe9c1869c20521c383bb7a620a640ff0bcb33454477b456d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:25Z), 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/QZZ7S2561952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3d2115475e2dda1c2da3bcd2ce2184fcf19186569059d37ab9ec175a90ac64. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:52:26Z), 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/QT3EY2565505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cfd843f46095876ef31de2ead0fab3c5755fd8db6208284c3aab5da29bdc70. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:48:16Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3EY2576646.