Lifetime may refer to: The period between one's birth and death Life expectancy, the length of time a person is expected to remain alive Arts, entertainment, and media Music Lifetime (band), a
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 0xcf94124b4dda43ec456ea97d790839dd7d93ed31a29ff0c3ae09775848620dcb. 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/2c513795-7f27-4e18-abaa-93b8633e6135.json and https://artists.proofprofile.net/proofs/artist/2c513795-7f27-4e18-abaa-93b8633e6135.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 0x9022e9303c58913996dbddd4aa245d1f8c73911ae28df7f5a79e738b325ba2f6. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/USA6M0402101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5b416082f3b9d5d580f5953a7224b756b5a0d5ea55bfd4c58db390ffd21465. 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/USA6M0402103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2655c728659280a4f25dfa6f948bf4825a8ec66a72f607210496e52f4054fbaf. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USA6M0402104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12677ec59e5cfd83dbd24d4ee2e3b850e1459383c1a2c346949ea509c0a55b5f. 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/USA6M0402105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93d50e9e4e9bb294f2886d9e790c4d85b8e41dea9e42fd1e1ca0c85def0dcac. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USA6M0402106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f73c0575bf44d0df38f4abe94d638f9409eac9677a031cc27c82af1a97a9adf. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USA6M0402107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56940fad281c6c71bb4d7c6970460a56d174db491827bd9e2e68486a265e803c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USA6M0402108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34132dea0b6b21f9c5d4a8eb43a5db343e577f21185da3a5bea63da956d7b019. 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/USA6M0402109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b8bc56f797fd3a9694090954829089fcc452c382a5d49ef925a16925cf37c. 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/USA6M0402110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ddb31b545f4ab020853df0fbab67df6efc3e7b30bea2057c272ea1220782c1. 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/USA6M0402111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2bbec9afdce388f1020960325e0e58cff27088d9cd1bba5cc2ff49c69f50b5. 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/USA6M0402112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf26cf62185cc31aed5c420721a0bc2558efe273aada86e49d9940673fdcacad. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/USA6M0403403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1382693e3d2916a1be0688462e3fa7beb44cc8701625e5b272a2605ddb12714d. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USA6M0403405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39106b28c15354a4f6084d759edb3e2fe894d0d7b4e45bc9c5da3520ace2578. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USA6M0403406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20783f0eb578df859bce0d33f95b004d18bda116bcf2e9e615098c8a9d1fc00c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA6M0403407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93f928dfcc81cc9a173a7406bcbd35305572fcb1e334aff608543fae52da9ae. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA6M0403410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4451830b87d1567ffbaf7cf1aafc2ee64a5ae6595fcb24662aa1ff05d5571146. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/USA6M0403411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f65ccbcdf162c1bc17bba0e00ac76c706e0e3a8038463be9342c182c20592bb. 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/USA6M0403412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae87a4db4a42624d58795f3f9e6cdf1ddaa1675c87160dee41bb6f4a02690dc. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USA6M0610001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e55ca1c3f6506a321eed4327ce5d2e5e64e2c28cce896836f61c8c17b25f9f7. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USA6M0610002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499989e8579d06292d8f2537c691fb0028b12151caa920525a8b9bf21eaf74fb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA6M0610003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a645e4b5cded82c624f111af7d1e45c845f5de4011fed0885c3eb98d81766a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USAT20624454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a14b3ff92411d7e258a8e95eb4a8be4a414b53b59121e8a691116e2f276a70. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USAT20624455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebb9ca9a399f6b692f0257ca5c400a79b2c6bc7f16124b88cd54324f530d02f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USAT20624456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d3f1c487aca95afd9397ad0b1431659df15dd32b05bf40aa29ecc5599ae8a0. 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/USAT20624457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931c3491f2bd40ae3bef4050db08ea06db8cbeda0555b772d719d388900ca526. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USAT20624458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd0c045eee1fc7ce434baceedeb51b4c50535b6ef3eebc0c560089aa5e0e0d4. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USAT20624459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc6400f706e4d149b0135b2a98b07a09a3a378800a6bbe470eb4779cb32de78. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USAT20624460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9176b0b33f7e121cbcce28eb7dbd7cc0ed7adae16892627e19421d6bf908fd0f. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/USAT20624462.