ASR may refer to: Military A US Navy hull classification symbol: Submarine rescue vessel (ASR) U.S. Army Service Ribbon Organizations and publications ASR Nederland, a Dutch insurance company Aca
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 0xb6363b8d5754a0046fdf95560e9dd3e4ff98eccd57970b70676af57445b188eb. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf154ee0-3081-4eb3-b3ae-8a9aa9dd4df8.json and https://artists.proofprofile.net/proofs/artist/cf154ee0-3081-4eb3-b3ae-8a9aa9dd4df8.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 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 0xf4148b805f17c17d4823192cb22e4097c8eae0833eb47dbdfbbf54600267f078. 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/QM42K2332194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c03600a46aa18b61dbf09ad1f0dae3389e8b7c046f35be3761bb2455b87bc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZS632305851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c68750312e9b6dcac9bf461662486a9b5ee1f51e4b730d0e6822c8ccb3d07. 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/QZMHP2339051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c109ea22d913ace5e4e553df95e7e02eb73e6b6fd4cb20be5d3bc3c4a604b4. 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/QM42K2331646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62ea925e22b4088048a90cec4e736a893def4b129252d8620718d2272a5f0f3. 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/QZS632312627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fb7e8b05ac43513c6f5429d6cdeba10447a005962135a4b4d024277773e370. 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/QZS642304486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3905c980e21ab4de47fb12bcb603a66ab0531d8d904a9982b9750d23ab417d7e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZMHM2350918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563a165ed4a6cd52c3e232418ad738950326d18e000506d6ba1c6c95cd5bbaac. 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/QZMHL2473962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc233afc8627faeaa65eb3e7c8a15230aa75e60defbf7bda5c9bf2e133d2ec607. 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/QZFP52430509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0341790dddc035e5be1e7fd0cc42fd92faac75e788aed21a7799178ce69f81. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZFP52430505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6a1e92d20a32b407cbcfce234cc53a8208f89bab1bbe4d03da22337c5cdb2b. 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/QZHPJ2243192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d6694275a09f19bd3f131839665d0cf586984cd5b70cf2011919af01837df4. 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/QZFP52429758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe0050beea29903286ec078c99cf73f0fa3b4e491a8208701943017991355f3. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QZS652442986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98801b1c1f11f9fdf7438e507cfdae1db5e597895d1da4ac414f9097ca00df7f. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QM8DG2442013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412407f284153e207a73074f2ec6a26f3f3518fbf266f6415f20d56c8dc224d6. 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/QZH5E2328752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6c420925b48e1a07e959f83a754934f05e2c6b19952f0f1df646181af27b03. 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/QZH5E2325427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d08dc745fd5ba5627fb2b773106a4927bb17e22275c814b549cbc8d6700d45a. 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/QZH5E2324037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f9e6917d171a9404c10bfed1538daacb445619dd4ddc3002d9148c32ee021e. 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/QZH5E2323045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4788bdbc9f757153ed5715c0131e001b44d287d091236d9702025cf880f6dd4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZH5E2319818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68167fcbfc321c6f351fa217286cd5817cd129d1ce41a033a17bb19989c1e3ae. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/QM8DG2389707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce87d9bc0b18b38cfabfdb3e876c3fdb19299d5e62664d3169efcdc91b70ecd. 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/QM8DG2380735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa03f381203f318e6838599a42b55795aaa843d3483f1d14db5d51ce84b067b7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZKDK2389159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac8f505a5d6f5301eb3fd6403af80cfb3e28f8ff55b4af7a451f21601cf9673. 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/QZJRC2288403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0853101cda0790ae6ba61a698ee40f2fd3b1fc944f8e64a6dec28b3a8c5129b. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZJRC2265341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68f39271ef909c3394b70bc1cb6ee704ec1156b1e1eea3c297ad98e5a145825. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM8DG2237367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd971fd0eb707e65756ae6e9e30b4007b3d7a0bea74c5a490a893cfccce93aa1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZJRC2218426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a24fad51a6a44a8b0e5d6ce2d4b621a302eb25681af80714f6e2d0f47afc663. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QM8DG2272888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf1ac73dad95de7c9188a5fe2b86244d559bd7d1b3613b28cfb2517c098ece1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZJRB2268839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a7ebaf6a2c9b35313e0b2e5b7b40d4c444ae1bb624444c4a103b72c1769eda. 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/QZJRB2213588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9916bcf70efeb8b4743ea2c9692f5e639fbb1076786689aa9b8694f0c81a2fe4. 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/QZHPJ2257566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c174f73c12dd99a0930205fcc4402d78e7a956ce671911b65517e77eab027f. 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/QZHPJ2227533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501238e1d01e8fa144fc509f4f8afb588b849f057eeff6338f83c079908587ca. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM8DG2211414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9b7b17e72c5cb66c8b8a3bfb1759464c9f697cafc93011401af4c7c7635c3b. 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/QZHZD2114347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4380f9768483e6f6864a6bd3afb3e8fe03903ec05199c4ceff9fa68757d52e. 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/QZNRS2096831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07a3a93dcf84d4f2bdf69c55395774619b193d7cd47a718e5f4030829bf2ea8. 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/QZJRB2044685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466e4f88cc33445fd1e765bbdd5b2f4b557a4829db35180344b720a9beab4880. 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/NLS161802117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cae7a415609bc8aa3caa144da938bd6985b8ea0252af7084c9710695ca69e5. 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/NLS202200263.